Manual The Hacker’s Briefcase (Hacker Magazine Book 1)

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Used to notify others that you will be momentarily unavailable online. Often MUDs will have a command to politely inform others of your absence when they try to talk with you. A problem that is AI-complete is, in other words, just too hard. See also gedanken. See also ha ha only serious , mu , and hacker humor.

See virus , worm , Trojan horse , virgin. A victim of the dreaded "hybridism" disease, this attempt to combine the two main currents of the Unix stream BSD and USG Unix became a monstrosity to haunt system administrators' dreams. For example, if new accounts are created while many users are logged on, the load average jumps quickly over 20 due to silly implementation of the user databases.

It is correspondingly argued that the right way to build reliable systems is to put all your eggs in one basket, after making sure that you've built a really good basket. Typically this is created while debugging user interface code. An example would be when there is a menu stating, "Select or 9 to quit" and 9 is not allowed by the function that takes the selection from the user. This term received its name from a programmer who had coded a modal message box in MSAccess with no Ok or Cancel buttons, thereby disabling the entire program whenever the box came up.

The message box had the proper code for dismissal and even was set up so that when the non-existent Ok button was pressed the proper code would be called. A class of subtle programming errors that can arise in code that does dynamic allocation, esp. Avoidable by use of allocation strategies that never alias allocated core, or by use of higher-level languages, such as LISP , which employ a garbage collector see GC.

Also called a stale pointer bug. See also precedence lossage , smash the stack , fandango on core , memory leak , memory smash , overrun screw , spam. The archetypal individuals used as examples in discussions of cryptographic protocols. Originally, theorists would say something like: "A communicates with someone who claims to be B, So to be sure, A tests that B knows a secret number K.

So A sends to B a random number X. B then forms Y by encrypting X under key K and sends Y back to A" Because this sort of thing is is quite hard to follow, theorists stopped using the unadorned letters A and B to represent the main players and started calling them Alice and Bob. So now we say "Alice communicates with someone claiming to be Bob, and to be sure, So Alice tests that Bob knows a secret number K.

Alice sends to Bob a random number X. In Bruce Schneier's definitive introductory text "Applied Cryptography" 2nd ed. Others include Carol a participant in three- and four-party protocols , Dave a participant in four-party protocols , Eve an eavesdropper , Mallory a malicious active attacker , Trent a trusted arbitrator , Walter a warden , Peggy a prover and Victor a verifier. These names for roles are either already standard or, given the wide popularity of the book, may be expected to quickly become so. Used to describe a program that rudely steals the resources that it needs without considering that other TSRs may also be resident.

One particularly common form of rudeness is lock-up due to programs fighting over the keyboard interrupt. See rude , also mess-dos. See bit rot. The alt hierarchy on Usenet, the tree of newsgroups created by users without a formal vote and approval procedure. There is a myth, not entirely implausible, that alt is acronymic for "anarchists, lunatics, and terrorists"; but in fact it is simply short for "alternative". See meta bit. Digital Press, first edition , second edition Note that due to a technical screwup some printings of the second edition are actually of a color the author describes succinctly as "yucky green".

See also book titles. This prevented it from gaining serious market share, despite the fact that the first Amigas had a substantial technological lead on the IBM XTs of the time. Instead, it acquired a small but zealous population of enthusiastic hackers who dreamt of one day unseating the clones see Amiga Persecution Complex. The strength of the Amiga platform seeded a small industry of companies building software and hardware for the platform, especially in graphics and video applications see video toaster. After Commodore went bankrupt in the technology passed through several hands, none of whom did much with it.

However, the Amiga is still being produced in Europe under license and has a substantial number of fans, which will probably extend the platform's life considerably. The disorder suffered by a particularly egregious variety of bigot , those who believe that the marginality of their preferred machine is the result of some kind of industry-wide conspiracy for without a conspiracy of some kind, the eminent superiority of their beloved shining jewel of a platform would obviously win over all, market pressures be damned!

Those afflicted are prone to engaging in flame war s and calling for boycotts and mailbombings. Linux users used to display symptoms very frequently before Linux started winning; some still do. See also newbie , troll , holy wars , weenie , Get a life! Humorous term for the Commodore Amiga personal computer. The name is from Tolkien's Pits of Angband compare elder days , elvish. Has been described as "Moria on steroids"; but, unlike Moria, many aspects of the game are customizable. This leads many hackers and would-be hackers into fooling with these instead of doing productive work.

There are many Angband variants, of which the most notorious is probably the rather whimsical Zangband. In this game, when a key that does not correspond to a command is pressed, the game will display "Type? Zangband also allows the player to kill Santa Claus who has some really good stuff, but also has a lot of friends , "Bull Gates", and Barney the Dinosaur but be watchful; Barney has a nasty case of halitosis.

See also Random Number God. A bad visual-interface design that uses too many colors. This term derives, of course, from the bizarre day-glo colors found in canned fruit salad. Too often one sees similar effects from interface designers using color window systems such as X ; there is a tendency to create displays that are flashy and attention-getting but uncomfortable for long-term use.

A type of shareware that frequently disrupts normal program operation to display requests for payment to the author in return for the ability to disable the request messages. See also careware , charityware , crippleware , freeware , FRS , guiltware , postcardware , and -ware ; compare payware.

Unfortunately, this standard was both over-complicated and too permissive. It has been retired and replaced by the ECMA standard, which shares both flaws. This comes from the ANSI. Particular use depends on context. It's most appropriately applied to things that everyone does that are not quite regulation.

For example: ANSI standard shaking of a laser printer cartridge to get extra life from it, or the ANSI standard word tripling in names of usenet alt groups. Coined allegedly because most pizzas ordered by CMU hackers during some period leading up to mid were of that flavor.

See also rotary debugger ; compare ISO standard cup of tea. Node: AOL! The number of exclamation points following varies from zero to five or so. See also September that never ended. Apps are what systems vendors are forever chasing developers to create for their environments so they can sell more boxes. Hackers tend not to think of the things they themselves run as apps; thus, in hacker parlance the term excludes compilers, program editors, games, and messaging systems, though a user would consider all those to be apps.

See killer app ; oppose tool , operating system. So named from a malloc: corrupt arena message emitted when some early versions detected an impossible value in the free block list. See overrun screw , aliasing bug , memory leak , memory smash , smash the stack. ARMM was intended to automatically cancel posts from anonymous-posting sites.

Unfortunately, the robot's recognizer for anonymous postings triggered on its own automatically-generated control messages! Transformed by this stroke of programming ineptitude into a monster of Frankensteinian proportions, it broke loose on the night of March 31, and proceeded to spam news. ARMM's bug produced a recursive cascade of messages each of which mechanically added text to the ID and Subject and some other headers of its parent. This produced a flood of messages in which each header took up several screens and each message ID and subject line got longer and longer and longer.

Reactions varied from amusement to outrage. The pathological messages crashed at least one mail system, and upset people paying line charges for their Usenet feeds. One poster described the ARMM debacle as "instant Usenet history" also establishing the term despew , and it has since been widely cited as a cautionary example of the havoc the combination of good intentions and incompetence can wreak on a network. Compare Great Worm ; sorcerer's apprentice mode. See also software laser , network meltdown. See, for example, asbestos longjohns and asbestos cork award.

Any reader in doubt as to the intended application of the cork should consult the etymology under flame. Since then, it is agreed that only a select few have risen to the heights of bombast required to earn this dubious dignity -- but there is no agreement on which few. Notional garments donned by Usenet posters just before emitting a remark they expect will elicit flamage.

This is the most common of the asbestos coinages. The standard version uses 7 bits for each character, whereas most earlier codes including early drafts of of ASCII prior to June used fewer. This change allowed the inclusion of lowercase letters -- a major win -- but it did not provide for accented letters or any other letterforms not used in English such as the German sharp-S or the ae-ligature which is a letter in, for example, Norwegian. It could be worse, though. It could be much worse.

Computers are much pickier and less flexible about spelling than humans; thus, hackers need to be very precise when talking about characters, and have developed a considerable amount of verbal shorthand for them. Every character has one or more names -- some formal, some concise, some silly. See also individual entries for bang , excl , open , ques , semi , shriek , splat , twiddle , and Yu-Shiang Whole Fish. This list derives from revision 2. Ordinary parentheticals provide some usage information. Rare: factorial; exclam; smash; cuss; boing; yell; wow; hey; wham; eureka; [spark-spot]; soldier, control.

Common: number sign; pound; pound sign; hash; sharp; crunch ; hex; [mesh]. Rare: [double-oh-seven]. Rare: wildcard; gear; dingle; mult; spider; aster; times; twinkle; glob see glob ; Nathan Hale. Rare: cross; [intersection]. Rare: [worm]; option; dak; bithorpe. Rare: radix point; full stop; [spot]. Rare: diagonal; solidus; over; slak; virgule; [slat]. Rare: dots; [two-spot]. Rare: weenie; [hybrid], pit-thwong. Rare: quadrathorpe; [half-mesh]. Rare: whatmark; [what]; wildchar; huh; hook; buttonhook; hunchback. Common: at sign; at; strudel. V Rare: [book]. Rare: score; backarrow; skid; [flatworm].

Common: bar; or; or-bar; v-bar; pipe; vertical bar. Rare: approx; wiggle; swung dash; enyay; [sqiggle sic ]. The U. Some other common usages cause odd overlaps. See also splat. The inability of ASCII text to correctly represent any of the world's other major languages makes the designers' choice of 7 bits look more and more like a serious misfeature as the use of international networks continues to increase see software rot.

Hardware and software from the U. O ACK! This lexicon is sorted in something close to ASCIIbetical order, but with case ignored and entries beginning with non-alphabetic characters moved to the end. This term became common among hackers after it came to light in early that Microsoft had attempted to use such tactics to forestall the U. Department of Justice's antitrust action against the company. This backfired horribly, angering a number of state attorneys-general enough to induce them to go public with plans to join the Federal suit. It also set anybody defending Microsoft on the net for the accusation "You're just astroturfing!

Indivisible; cannot be split up. Used esp. If an error prevents a partially-performed transaction from proceeding to completion, it must be "backed out," as the database must not be left in an inconsistent state. About an inch. A parsec parallax-second is 3. This unit is reported to be in use though probably not very seriously among hackers in the U.

See micro-. See bogotify. Automatically, but in a way that, for some reason typically because it is too complicated, or too ugly, or perhaps even too trivial , the speaker doesn't feel like explaining to you. See magic. Among people working on virtual reality and cyberspace interfaces, an avatar is an icon or representation of a user in a shared virtual reality.

The term is sometimes used on MUD s. It is characterized by C-like syntax, a declaration-free approach to variable typing and declarations, associative arrays, and field-oriented text processing. See also Perl. Editing term for an expression awkward to manipulate through normal regexp facilities for example, one containing a newline. To process data using awk 1. The motivation for such holes is not always sinister; some operating systems, for example, come out of the box with privileged accounts intended for use by field service technicians or the vendor's maintenance programmers.

See also iron box , cracker , worm , logic bomb. Historically, back doors have often lurked in systems longer than anyone expected or planned, and a few have become widely known. Ken Thompson's Turing Award lecture to the ACM admitted the existence of a back door in early Unix versions that may have qualified as the most fiendishly clever security hack of all time. Normally such a back door could be removed by removing it from the source code for the compiler and recompiling the compiler.

And having done this once, he was then able to recompile the compiler from the original sources; the hack perpetuated itself invisibly, leaving the back door in place and active but with no trace in the sources. Ken Thompson has since confirmed that this hack was implemented and that the Trojan Horse code did appear in the login binary of a Unix Support group machine. Ken says the crocked compiler was never distributed. A group of large-site administrators who pushed through the Great Renaming and reined in the chaos of Usenet during most of the s.

During most of its lifetime, the Cabal as it was sometimes capitalized steadfastly denied its own existence; it was almost obligatory for anyone privy to their secrets to respond "There is no Cabal" whenever the existence or activities of the group were speculated on in public.

The result of this policy was an attractive aura of mystery. Even a decade after the cabal mailing list disbanded in late following a bitter internal catfight, many people believed or claimed to believe that it had not actually disbanded but only gone deeper underground with its power intact.

This belief became a model for various paranoid theories about various Cabals with dark nefarious objectives beginning with taking over the Usenet or Internet. These paranoias were later satirized in ways that took on a life of their own. See Eric Conspiracy for one example. Formerly, a key Usenet and email site, one that processes a large amount of third-party traffic, especially if it is the home site of any of the regional coordinators for the Usenet maps. Notable backbone sites as of early , when this sense of the term was beginning to pass out of general use due to wide availability of cheap Internet connections, included uunet and the mail machines at Rutgers University, UC Berkeley, DEC 's Western Research Laboratories, Ohio State University, and the University of Texas.

Compare rib site , leaf site. The UUCP network world that gave it meaning has nearly disappeared; everyone is on the Internet now and network traffic is distributed in very different patterns. Some people prefer to use the term for processing that they have queued up for their unconscious minds a tack that one can often fruitfully take upon encountering an obstacle in creative work.

Compare amp off , slopsucker. Technically, a task running in background is detached from the terminal where it was started and often running at a lower priority ; oppose foreground. In a regular expression or pattern match, the text which was matched within grouping parentheses parentheses. The part of the pattern which refers back to the matched text. By extension, anything which refers back to something which has been seen or discussed before. Discovering backronyms is a common form of wordplay among hackers.

Compare retcon. Back up. Used to suggest that someone just said or did something wrong. Once common among APL programmers; may now be obsolete. Too often, the old and new versions cannot definitively be distinguished, such that lingering instances of the previous ones yield crashes or other infelicitous effects, as opposed to a simple "version mismatch" message. A backwards compatible change, on the other hand, allows old versions to coexist without crashes or error messages, but too many major changes incorporating elaborate backwards compatibility processing can lead to extreme software bloat.

See also flag day. See working as designed. This common term is the prototype of, and is used by contrast with, three less common terms - Bad and Right a kludge, something ugly but functional ; Good and Wrong an overblown GUI or other attractive nuisance ; and rare praise Good and Right. These terms entered common use at Durham c. Compare evil and rude , Good Thing , Bad Thing. This term is always capitalized, as in "Replacing all of the baud modems with bicycle couriers would be a Bad Thing".

Oppose Good Thing. British correspondents confirm that Bad Thing and Good Thing and prob. This has apparently created a mainstream idiom on the British side of the pond. It is very common among American hackers, but not in mainstream usage here.

Compare Bad and Wrong. Usually derogatory, implying that the original was being overextended and should have been thrown away, and the new product is ugly, inelegant, or bloated. Also v. That's just a bag on the side of C Something, such as a program or a computer, that fails to work, or works in a remarkably clumsy manner. What a bagbiter! A person who has caused you some trouble, inadvertently or otherwise, typically by failing to program the computer properly.

Synonyms: loser , cretin , chomper. To fail in some manner.

Of Slang, Jargon, and Techspeak

ITS's lexiphage program was the first and to date only known example of a program intended to be a bagbiter. Having the quality of a bagbiter. The affected user will come back to find a post from them on internal newsgroups discussing exactly how baggy their pants are, an accepted stand-in for "unattentive user who left their work unprotected in the clusters". A properly-done baggy pantsing is highly mocking and humorous see examples below. It is considered bad form to post a baggy pantsing to off-campus newsgroups or the more technical, serious groups. A particularly nice baggy pantsing may be "claimed" by immediately quoting the message in full, followed by your sig; this has the added benefit of keeping the embarassed victim from being able to delete the post.

Interesting baggy-pantsings have been done involving adding commands to login scripts to repost the message every time the unlucky user logs in; Unix boxes on the residential network, when cracked, oftentimes have their homepages replaced after being politely backedup to another file with a baggy-pants message;. Usage: "Prof. Greenlee fell asleep in the Solaris cluster again; we baggy-pantsed him to git.

A typical balloonian variable started out as a flag attached to some environment feature that either became obsolete or was planned but never implemented. Compatibility concerns or politics attached to same may require that such a flag be treated as though it were live. Notional sound made by a person or object teleporting in or out of the hearer's vicinity. Often used in virtual reality esp. MUD electronic fora when a character wishes to make a dramatic entrance or exit. The sound of magical transformation, used in virtual reality fora like MUDs.

In MUD circles, "bamf" is also used to refer to the act by which a MUD server sends a special notification to the MUD client to switch its connection to another server "I'll set up the old site to just bamf people over to our new location. The labels often used on the sides of macrotape reels, so called because they are shaped roughly like blunt-ended bananas.

This term, like macrotapes themselves, is still current but visibly headed for obsolescence. Not knowing where or when to bring a production to a close compare fencepost error. Also, see one-banana problem for a superficially similar but unrelated usage. This comes from an analogy between binary and the hand, i.

Considered silly. This generalized usage began to go mainstream after the Internet population explosion of Attention span. On Usenet , a measure of network capacity that is often wasted by people complaining about how items posted by others are a waste of bandwidth. Common spoken name for! ASCII , especially when used in pronouncing a bang path in spoken hackish.

Note that it is used exclusively for non-emphatic written! An exclamation signifying roughly "I have achieved enlightenment! To stress-test a piece of hardware or software: "I banged on the new version of the simulator all day yesterday and it didn't crash once. I guess it is ready for release. Thus, for example, the path! Bang paths of 8 to 10 hops were not uncommon in Late-night dial-up UUCP links would cause week-long transmission times.

Bang paths were often selected by both transmission time and reliability, as messages would often get lost. See Internet address , the network , and sitename. The title page added to printouts by most print spoolers see spool. Typically includes user or account ID information in very large character-graphics capitals. A similar printout generated typically on multiple pages of fan-fold paper from user-specified text, e.

This is probably now the commonest sense. Any of the annoying graphical advertisements that span the tops of way too many Web pages. Often appended to foo to produce foobar. Real bare-metal programming involves things like building boot proms and BIOS chips, implementing basic monitors used to test device drivers, and writing the assemblers that will be used to write the compiler back ends that will give the new machine a real development environment.

This sort of thing has become less common as the relative costs of programming time and machine resources have changed, but is still found in heavily constrained environments such as industrial embedded systems, and in the code of hackers who just can't let go of that low-level control. See Real Programmer. In the world of personal computing, bare metal programming especially in sense 1 but sometimes also in sense 2 is often considered a Good Thing , or at least a necessary evil because these machines have often been sufficiently slow and poorly designed to make it necessary; see ill-behaved.

There, the term usually refers to bypassing the BIOS or OS interface and writing the application to directly access device registers and machine addresses. Term of disgust. This is the closest hackish equivalent of the Valspeak "gag me with a spoon". Like, euwww! See bletch. To say "Barf! To fail to work because of unacceptable input, perhaps with a suitable error message, perhaps not.

Examples: "The division operation barfs if you try to divide by 0. Multiple bounce message s accumulating to the level of serious annoyance, or worse. The sort of thing that happens when an inter-network mail gateway goes down or wonky. Variation of barf used around the Stanford area. An exclamation, expressing disgust. On seeing some particularly bad code one might exclaim, "Barfulation! Who wrote this, Quux? Said of hardware or esp.

Now that is baroque! A programming language, originally designed for Dartmouth's experimental timesharing system in the early s, which for many years was the leading cause of brain damage in proto-hackers. Edsger W. Dijkstra observed in "Selected Writings on Computing: A Personal Perspective" that "It is practically impossible to teach good programming style to students that have had prior exposure to BASIC: as potential programmers they are mentally mutilated beyond hope of regeneration.

A novice can write short BASIC programs on the order of lines very easily; writing anything longer a is very painful, and b encourages bad habits that will make it harder to use more powerful languages well. This wouldn't be so bad if historical accidents hadn't made BASIC so common on low-end micros in the s. As it is, it probably ruined tens of thousands of potential wizards. Because most programming language names were in fact acronyms, BASIC was often capitalized just out of habit or to be silly. No acronym for BASIC originally existed or was intended as one can verify by reading texts through the early s.

Beginner's All-purpose Symbolic Instruction Code is the one that caught on. Many hackers routinely hang numerous devices such as pagers, cell-phones, personal organizers, leatherman multitools, pocket knives, flashlights, walkie-talkies, even miniature computers from their belts. When many of these devices are worn at once, the hacker's belt somewhat resembles Batman's utility belt; hence it is referred to as a batbelt.

Performance of dreary tasks all at one sitting. See also burn-in period , infant mortality. Bits per second. Hence kilobaud or Kbaud, thousands of bits per second. Most hackers are aware of these nuances but blithely ignore them. The garbage one gets a terminal or terminal emulator when using a modem connection with some protocol setting esp. Baud barf is not completely random , by the way; hackers with a lot of serial-line experience can usually tell whether the device at the other end is expecting a higher or lower speed than the terminal is set to.

Really experienced ones can identify particular speeds. A term of mild annoyance. He says "It came from "Pogo". In , after meditatating on the success of Linux for three years, the Jargon File's own editor ESR wrote an analytical paper on hacker culture and development models titled The Cathedral and the Bazaar. The main argument of the paper was that Brooks's Law is not the whole story; given the right social machinery, debugging can be efficiently parallelized across large numbers of programmers. The title metaphor caught on see also cathedral , and the style of development typical in the Linux community is now often referred to as the bazaar mode.

Its characteristics include releasing code early and often, and actively seeking the largest possible pool of peer reviewers. Any electronic bulletin board; esp. At CMU and other colleges with similar facilities, refers to campus-wide electronic bulletin boards. The term was especially applied to the thousands of local BBS systems that operated during the pre-Internet microcomputer era of roughly to Fans of Usenet and Internet or the big commercial timesharing bboards such as CompuServe and GEnie tended to consider local BBSes the low-rent district of the hacker culture, but they served a valuable function by knitting together lots of hackers and users in the personal-micro world who would otherwise have been unable to exchange code at all.

See also bboard. It is remarkable for its rich syntax, small size of compiler it can be run in 16k and extreme portability. It reached break-even point at a very early stage, and was the language in which the original hello world program was written. It has been ported to so many different systems that its creator confesses to having lost count. It has only one data type a machine word which can be used as an integer, a character, a floating point number, a pointer, or almost anything else, depending on context.

BCPL was a precursor of C, which inherited some of its features. Palm Pilot users very commonly use this term for the act of exchanging bits via the infrared links on their machines this term seams to have originated with the ill-fated Newton Message Pad. Compare blast , snarf , BLT.

2. Jonathan James

A worthy companion to INTERCAL ; a computer language family which escapes the quotidian limitation of linear control flow and embraces program counters flying through multiple dimensions with exotic topologies. A Macintosh. See toaster ; compare Macintrash , maggotbox. Distinguished from chrome , which is intended to attract users. The recognized emphatic form is "bells, whistles, and gongs". It used to be thought that this term derived from the toyboxes on theater organs. However, the "and gongs" strongly suggests a different origin, at sea.

Before powered horns, ships routinely used bells, whistles, and gongs to signal each other over longer distances than voice can carry. See also machoflops , MIPS , smoke and mirrors. It usually has nonexistent, incomplete, or incorrect documentation, has been tested on at least two examples, and core dumps when anyone else attempts to use it.

This term was frequently applied to early versions of the dbx 1 debugger. See also Berzerkeley. Not used at Berkeley itself. See software bloat , Missed'em-five , Berkeley Quality Software. Mainstream use of this term in reference to the cultural and political peculiarities of UC Berkeley as a whole has been reported from as far back as the s. Mostly working, but still under test; usu.

In the Real World , systems hardware or software software often go through two stages of release testing: Alpha in-house and Beta out-house? Beta releases are generally made to a group of lucky or unlucky trusted customers. Anything that is new and experimental. Flaky; dubious; suspect since beta software is notoriously buggy. Historical note: More formally, to beta-test is to test a pre-release potentially unreliable version of a piece of software by making it available to selected or self-selected customers and users.

This term derives from early s terminology for product cycle checkpoints, first used at IBM but later standard throughout the industry. These themselves came from earlier A- and B-tests for hardware. The A-test was a feasibility and manufacturability evaluation done before any commitment to design and development. The B-test was a demonstration that the engineering model functioned as specified. The C-test corresponding to today's beta was the B-test performed on early samples of the production design, and the D test was the C test repeated after the model had been in production a while.

See brute force and ignorance. The most detailed and authoritative reference for a particular language, operating system, or other complex software system. Too many marketroid types think this sort of thing is really cute, even the 2,th time they do it. Compare studlycaps. The most famous pseudo , and the prototypical newbie.

B1FF's location is a mystery, as his articles appear to come from a variety of sites. Versions have since been posted for the amusement of the net at large. To notify someone of incoming mail. From the BSD utility biff 1 , which was in turn named after a friendly dog who used to chase frisbees in the halls at UCB while 4. There was a legend that it had a habit of barking whenever the mailman came, but the author of biff says this is not true.

No relation to B1FF. What faces a VMS user searching for documentation. A full VMS kit comes on a pallet, the documentation taking up around 15 feet of shelf space before the addition of layered products such as compilers, databases, multivendor networking, and programming tools. See VMS. Used generally of number-crunching supercomputers such as Crays, but can include more conventional big commercial IBMish mainframes. Term of approval; compare heavy metal , oppose dinosaur. People get fired for pulling them, especially inappropriately see also molly-guard.

Compare power cycle , three-finger salute , reset ; see also scram switch. Small mistake; big win! See little-endian , middle-endian , NUXI problem , swab. An Internet address the wrong way round. Most of the world follows the Internet standard and writes email addresses starting with the name of the computer and ending up with the name of the country. In the U.

Most gateway sites have ad-hockery in their mailers to handle this, but can still be confused. In particular, the address me uk. More generally, any very large number. There's bignums for you! See also El Camino Bignum. Sense 1 may require some explanation. If you want to work with numbers larger than that, you have to use floating-point numbers, which are usually accurate to only six or seven decimal places.

Computer languages that provide bignums can perform exact calculations on very large numbers, such as ! For example, this value for ! It is truly said "You can tell a bigot, but you can't tell him much. A mental flag: a reminder that something should be done eventually. More generally, a possibly incorrect mental state of belief. One speaks of setting and clearing bits. See also flag , trit , mode bit. Transmission of data on a serial line, when accomplished by rapidly tweaking a single output bit, in software, at the appropriate times.

Input is more interesting. And full duplex doing input and output at the same time is one way to separate the real hackers from the wannabee s. In an interesting instance of the cycle of reincarnation , this technique returned to use in the early s on some RISC architectures because it consumes such an infinitesimal part of the processor that it actually makes sense not to have a UART. Compare cycle of reincarnation.

May connote either tedium or a real technical challenge more usually the former. The universal data sink originally, the mythical receptacle used to catch bits when they fall off the end of a register during a shift instruction. The place where all lost mail and news messages eventually go. Routing to the bit bucket is automatically performed by mail-transfer agents, news systems, and the lower layers of the network.

The ideal location for all unwanted mail responses: "Flames about this article to the bit bucket. Excuse for all mail that has not been sent. This term is used purely in jest. It is based on the fanciful notion that bits are objects that are not destroyed but only misplaced. See also chad box. Any imbalance results in bits filling up the bit bucket.

A qualified computer technician can empty a full bit bucket as part of scheduled maintenance. People with a physics background tend to prefer this variant for the analogy with particle decay. See also computron , quantum bogodynamics. The theory explains that bits decay as if they were radioactive. As time passes, the contents of a file or the code in a program will become increasingly garbled.

There actually are physical processes that produce such effects alpha particles generated by trace radionuclides in ceramic chip packages, for example, can change the contents of a computer memory unpredictably, and various kinds of subtle media failures can corrupt files in mass storage , but they are quite rare and computers are built with error-detecting circuitry to compensate for them.

The notion long favored among hackers that cosmic rays are among the causes of such events turns out to be a myth; see the cosmic rays entry for details. The term software rot is almost synonymous. Software rot is the effect, bit rot the notional cause. Aimless small modification to a program, esp. The ASR was a mechanical device see EOU , so the only way to generate the character codes from keystrokes was by some physical linkage. In order to avoid making the thing even more of a kluge than it already was, the design had to group characters that shared the same basic bit pattern on one key.

Looking at the ASCII chart, we find: high low bits bits ! The Teletype Model 33 was actually designed before ASCII existed, and was originally intended to use a code that contained these two rows: low bits high bits 10! Just some thoughts. Okay, maybe a lot. Do take with a grain of salt, as some are certainly perspective and are also possibly different depending on semantics. But I also touch upon some other things that maybe are of interest to some. No offence meant, but these are - maybe one to two exceptions - not even that well known cases.

I'll elaborate as cleary some are. But maybe it'll be more clear what I'm saying, in a minute. Mitnick was all over the news and that's not suprising since his arrest in the 90s was not his first arrest or time in jail see below. McKinnon I would hardly call black hat. That's not to say that these aren't cases known, but at the same time, most aren't as high profile.

Maybe I'm further in the past, as when I was into the scenes, it was years ago over a decade.. There's also semantics but, I do think this list - well there's certainly many more known cases, more than likely more known than these again, less some exceptions. Re semantics, depends on definition of hacker, too: malware writers in the past had some pretty ingenious ideas say, the idea of piggybacking antiviruses by Dark Avenger. As an aside - antisocial is probably the wrong word there in your Hollywood remark.

See 'asocial' and 'antisocial' - the interesting thing is that antisocial people are actually very charismatic and sociable. As for Mitnick, while he certainly was a criminal and some might say he still is, see further below , I don't know if hacker is even the right term for him. He actually, in many cases, did his deeds through social engineering. He's a pathological liar. Interestingly, while I don't think what the government did keeping him away from evidence etc was fair, he actually kind of has himself to blame, considering he was fleeing and it wasn't his first time for being wanted for such things he was arrested in the late 80s, too.

Regardless, its a certainly well known case, so I can't say its a bad choice in the end. He didn't dodge anything - he simply is fighting it. I don't think he should be charged, as traditionally governments and media do make things sensational and worse than it really is, but I hardly call him black hat in any case. If they don't have backups, either, then shame on them and why they were on the Internet is another story. I haven't looked yet, but if you do have a 'white hat' version, I sure hope Loyd Blakenship is there! Again, maybe you would consider him 'bad', but having corresponded with him, I have to say he's quite a nice fellow.

Also his ethics and ideas are very well known yes, indeed, known as The Mentor.

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Re Morris: It actually was more like the most well known first worm though it is considered the first, and signifcant especially. Probably the case is, its known because of the way he prevented deletion of the file s was very similar to a fork bomb because of a logical missight on his part , hence taking down the systems. He also masked the source origin so that it appeared to come from another location. Can't recall exactly where, but it was while in universiry and some other university.

According to citations, that is the case even. Thinking about it, the fact he obscured the source makes me think the prostitute remark is absolutely incorrect. In hindsight, I'm not even sure he could be considered black hat either again, interpretations may vary. The fact that rsh and finger have many risks, as well does the old idea of 'trust relationship' ie hosts files in unix Then again, as they say: all good comes with bad and the reverse is true, too.

The dude that created the conficker worm gave alot of people a good april fools joke. He suffers from Asperger's Syndrome and the constant pressure from the US government has driven him suicidal. Not only that but he is actually Scottish not just "of Scottish descent", and the reason he "was able to dodge the American government " is because American law is not adhered to worldwide YEP Mr. This is how People runs the world Seems that was all McKinnon was doing.

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Rather unfair to put him with the obvious criminals, even if his exploits might have caused some financial losses. IBM has the right idea. If you can hack then they give you a very well paid job.

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  5. I m not a Computer geek bt i m Tech-savvy person who loves gadgets and read out things on it So as a HR you can select well those guys who have skills not by marks. Nahshon Even-Chaim a. Before This guy Australia had no digital crime laws and the Australian federal Police had to learn how to hack just to be able to catch him and the group he belonged to. What's up with all you people saying these theives should get hired or get a raise. Crime is a crime, would say the same thing about someone that broke into your house and stole all the jewelry? Because according to you, he helped find a point of break-in into your house and should be rewarded.

    You make a good point. However, with these people, it wasn't just everyday systems that they were breaking into. It'd be like if someone managed to break into a bank's vault or a king's treasury--systems that people assume are unbreakable. Still, should they be acknowledged? Should they be rewarded? Probably not, especially if they did it with malicious intent. I agree. A crime is a crime. Even more so if it is breaking into a tight vault. You can "thank" the intruder for pointing out the flaws, but still the criminal should be prosecuted.

    These hackers must be thanked for providing such useful information which was unnoticed by everyone. They must have been offered high salary with good incentives too,so that they'll remain honest as well as serve to these industries. As this article clearly states that if they're given a chance for their skills they can be a very useful asset. So this is how it should b done I want make me hacker but i don't know how to hacking anything.

    I m from India and I m middle class family. They combine Ethical Hacking with Social Engineering to test the physical and information security of a company. A real shame for NASA too They should have praised him for detecting their network's security hole They should have offered him a job Man he looks so young Looks like I was wrong.

    All of these hacker did something so rong why tell ppl about them tell the reporters and arest them for good. Top Deals. Email Facebook Whatsapp Pinterest Twitter. Enjoyed this article? Stay informed by joining our newsletter! Enter your Email. Read our privacy policy. I would upload a picture to prove what I'm saying but this page won't allow it.

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    My problem is Facebook id hacking Tricks for Android Plzz help me sir. Omg thx so much now im so interested in Anonymous. Time to make some research! I want to know whole about hacking Richard Stallman Barnaby jack YOU don't XD or go to to your mum and beg like hell and get slap by yout mum. How can i connect with a hacker or a hacker community. I can hack into your brain and I don't even need Internet c0nnection to do it.

    I think Kevin Mitnick should be on this list. Snowden is not a hacker. The famous hacker that should be in this hall of infamy is Anonymous. Narc city usa is hiring duhhhh. We need one to hack our bank that is robbing us with all their fees. I have hidden messages before such as this. First go with a windows program amateurs Hello brother i want to learn how to hack on here. Yes bro i want to learn hacking. Yevgeniy Bogachev with nickname "slavik".

    I am so interested in hacking One name I have to say Adrian Lamo. So the Mckinnons went into hiding as Muggles and eventually one went into hacking. How ironic. Where is Hamza Bendellaj The Best. Regards, A well wisher. Seriously ansage is missing ZeroCool I believe he now goes by the name Crash Override. Can't believe he's not on the list. This are hacker other can do this are best in computer. Hello Saad raza please give me your email address. I will do any to become the most wanted hacker on earth!!! Fell free to get my location!!! Oh come on how about John Draper?

    How do you leave off Captain Crunch from this list? First do good things don't you want to be a hacker. I was actually amazed it's amazing. Bryan Grey Yambao should be on the 6th spot. Great article Long live hackers! As far as i was concerned, The best Black hacker we ever had was "Jonathon James". One thing about black hat hackers, the are very highly motivated! Check out for the complete list of black hat hackers here Julian Assange should be on this list - not on the "white" hackers list! Hagbard aka Karl Koch and Markus Hess belongs here.

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    What about Julian Assange? Hackers of UGNazi, and th3j35t3r. NEO he discovered the Matrix! Well he didn't actually discover it, maybe Morpheus. Cool I want to work for the government. It's a tragedy when talent and intelligence is lost like in the case of Jonathan James.

    Oh it's a modern morality tail. Don't hack kids How can you miss out on Adrian Lamo?? Hes the best of the lot As one aside, I half-expected to see de Guzman and his "virus" mentioned here. Gary McKinnon should not be on this list, he has not been found guilty of anything. Actually every SW developer is a hacker.

    Else how he can fix the issues. CyberZeist, the UGNazi hacker should be put up on the list too! Haven't heard of him before you mentioned it. Thanks for sharing! Excellent article. Please publish such a story about white hat hackers too. Thank you. I'm glad you liked it. Perhaps I will write one on white hats! I wasn't aware that was an actual thing. Very cool! Very interesting if you look at it. Oh yes. There are tons of books about the subject. Nice article.

    Jonathan James Oh I'm really amazed