Chad refers to fragments sometimes created when holes are made in a paper, card or similar synthetic materials, such as computer punched tape or punched cards. The word "chad" has been used both as a mass noun (as in "a pile of chad") and as a countable noun (pluralizing as in "many chads").
The origin of the term chad is uncertain. Patent documents from the 1930s and 1940s show the word "chad", often in reference to punched tape used in telegraphy. These patents sometimes include synonyms such as "chaff" and "chips". A patent filing in 1930 included a "receptacle or chad box ... to receive the chips cut from the edge of the tape." [2] A 1938 patent filing included a "chaff or chad chute" to collect the waste fragments. [3] Both patents were assigned to Teletype Corporation.
The plural chads is attested from about 1939, along with chadless, meaning "without [loose] chad". Clear definitions for both terms are offered by Walter Bacon in a patent application filed in 1940 assigned to Bell Telephone Laboratories: "... In making these perforations, the perforator cuts small round pieces of paper, known in the art as chads, out of the tape. These chads are objectionable ... Chadless tape is prepared by feeding blank tape through a device which will not punch a complete circle in the tape but, instead, will only cut approximately three-quarters of the circumference of a circle ... thereby leaving a movable, or hinged, lid of paper in the tape." [4]
In the New Hacker's Dictionary , two unattributed and likely humorous[ citation needed ] derivations for "chad" are offered, a back-formation from a personal name "Chadless" and an acronym for "Card Hole Aggregate Debris". [5] Other etymologies claim derivation from the Scottish name for river gravel, chad, or the British slang for louse, chat.[ citation needed ]
When a chad is not fully detached, it is described by various terms corresponding to the level of modification from the unpunched state. The distinctions are of importance in counting cards used in voting. The following terms are sometimes used when describing a four-cornered chad:
In the 2000 United States presidential election in Florida, many of the state's counties used Votomatic-style punched card ballots where incompletely punched holes resulted in partially punched chads: either a "hanging chad", where one or more corners were still attached, or a "fat chad" or "pregnant chad", where all corners were still attached, but an indentation appears to have been made. These votes were not counted by the tabulating machines. [7] [8] The aftermath of the controversy ( Bush v. Gore ) caused the rapid discontinuance of punch card ballots in the United States. [9]
ASCII, an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. ASCII has just 128 code points, of which only 95 are printable characters, which severely limit its scope. The set of available punctuation had significant impact on the syntax of computer languages and text markup. ASCII hugely influenced the design of character sets used by modern computers, including Unicode which has over a million code points, but the first 128 of these are the same as ASCII.
The Baudot code is an early character encoding for telegraphy invented by Émile Baudot in the 1870s. It was the predecessor to the International Telegraph Alphabet No. 2 (ITA2), the most common teleprinter code in use before ASCII. Each character in the alphabet is represented by a series of five bits, sent over a communication channel such as a telegraph wire or a radio signal by asynchronous serial communication. The symbol rate measurement is known as baud, and is derived from the same name.
A punched card is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines.
A teleprinter is an electromechanical device that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations.
Punched tape or perforated paper tape is a form of data storage device that consists of a long strip of paper through which small holes are punched. It was developed from and was subsequently used alongside punched cards, the difference being that the tape is continuous.
Bush v. Gore, 531 U.S. 98 (2000), was a landmark decision of the United States Supreme Court on December 12, 2000, that settled a recount dispute in Florida's 2000 presidential election between George W. Bush and Al Gore. On December 8, the Florida Supreme Court had ordered a statewide recount of all undervotes, over 61,000 ballots that the vote tabulation machines had missed. The Bush campaign immediately asked the U.S. Supreme Court to stay the decision and halt the recount. Justice Antonin Scalia, convinced that all the manual recounts being performed in Florida's counties were illegitimate, urged his colleagues to grant the stay immediately. On December 9, the five conservative justices on the Court granted the stay, with Scalia citing "irreparable harm" that could befall Bush, as the recounts would cast "a needless and unjustified cloud" over Bush's legitimacy. In dissent, Justice John Paul Stevens wrote that "counting every legally cast vote cannot constitute irreparable harm." Oral arguments were scheduled for December 11.
A ballot is a device used to cast votes in an election and may be found as a piece of paper or a small ball used in voting. It was originally a small ball used to record decisions made by voters in Italy around the 16th century.
The 2000 United States presidential election recount in Florida was a period of vote recounting in Florida that occurred during the weeks after Election Day in the 2000 United States presidential election between George W. Bush and Al Gore. The Florida vote was ultimately settled in Bush's favor by a margin of 537 votes when the U.S. Supreme Court, in Bush v. Gore, stopped a recount that had been initiated upon a ruling by the Florida Supreme Court. Bush's win in Florida gave him a majority of votes in the Electoral College and victory in the presidential election.
A perforation is a small hole in a thin material or web. There is usually more than one perforation in an organized fashion, where all of the holes collectively are called a perforation. The process of creating perforations is called perforating, which involves removing bits of the workpiece with a tool. Old-fashioned lick-and-stick postage stamps are perforated. When a tool makes small cuts in the material it is called 'rouletting', because that tool often resembles a roulette wheel, with blades around the edge. Raffle tickets are a good example of rouletting.
A voting machine is a machine used to record votes in an election without paper. The first voting machines were mechanical but it is increasingly more common to use electronic voting machines. Traditionally, a voting machine has been defined by its mechanism, and whether the system tallies votes at each voting location, or centrally. Voting machines should not be confused with tabulating machines, which count votes done by paper ballot.
In computing jargon, the bit bucket is where lost computerized data has gone, by any means; any data which does not end up where it is supposed to, being lost in transmission, a computer crash, or the like, is said to have gone to the bit bucket – that mysterious place on a computer where lost data goes, as in:
The errant byte, having failed the parity test, is unceremoniously dumped into the bit bucket, the computer's wastepaper basket.
Millions of dollars in time and research data gone into the bit-bucket?
Confetti are small pieces or streamers of paper, mylar, or metallic material which are usually thrown at celebrations, especially parades and weddings. The origins are from the Latin confectum, with confetti the plural of Italian confetto, small sweet. Modern paper confetti trace back to symbolic rituals of tossing grains and sweets during special occasions, traditional for numerous cultures throughout history as an ancient custom dating back to pagan times, but adapted from sweets and grains to paper through the centuries. Confetti are manufactured in multiple colors, and commercially available confetti come in many different shapes. A distinction is made between confetti and glitter; glitter is smaller than confetti and is universally shiny. Most table confetti is also shiny. While they are called metallic confetti they are actually metallized PVC. Most party supply stores carry paper and metallic confetti. Confetti are commonly used at social gatherings such as parties, weddings, and Bar Mitzvahs. The simplest confetti are simply shredded paper, and can be made with scissors or a paper shredder. Chads punched out of scrap paper are also common. A hole punch makes small round chads, and a ticket punch makes more elaborate chads. Most pieces of paper flats will flutter as tumblewings giving long flight times.
A hole punch, also known as hole puncher, or paper puncher, is an office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder. A hole punch can also refer to similar tools for other materials, such as leather, cloth, or sheets of plastic or metal.
Starting at the end of the nineteenth century, well before the advent of electronic computers, data processing was performed using electromechanical machines collectively referred to as unit record equipment, electric accounting machines (EAM) or tabulating machines. Unit record machines came to be as ubiquitous in industry and government in the first two-thirds of the twentieth century as computers became in the last third. They allowed large volume, sophisticated data-processing tasks to be accomplished before electronic computers were invented and while they were still in their infancy. This data processing was accomplished by processing punched cards through various unit record machines in a carefully choreographed progression. This progression, or flow, from machine to machine was often planned and documented with detailed flowcharts that used standardized symbols for documents and the various machine functions. All but the earliest machines had high-speed mechanical feeders to process cards at rates from around 100 to 2,000 per minute, sensing punched holes with mechanical, electrical, or, later, optical sensors. The operation of many machines was directed by the use of a removable plugboard, control panel, or connection box. Initially all machines were manual or electromechanical. The first use of an electronic component was in 1937 when a photocell was used in a Social Security bill-feed machine. Electronic components were used on other machines beginning in the late 1940s.
The Friden Flexowriter was a teleprinter produced by the Friden Calculating Machine Company. It was a heavy-duty electric typewriter capable of being driven not only by a human typing, but also automatically by several methods, including direct attachment to a computer and by use of paper tape.
A keypunch is a device for precisely punching holes into stiff paper cards at specific locations as determined by keys struck by a human operator. Other devices included here for that same function include the gang punch, the pantograph punch, and the stamp. The term was also used for similar machines used by humans to transcribe data onto punched tape media.
The Teletype Model 33 is an electromechanical teleprinter designed for light-duty office use. It is less rugged and cost less than earlier Teletype models. The Teletype Corporation introduced the Model 33 as a commercial product in 1963, after it had originally been designed for the United States Navy. The Model 33 was produced in three versions:
The Teletype Corporation, a part of American Telephone and Telegraph Company's Western Electric manufacturing arm since 1930, came into being in 1928 when the Morkrum-Kleinschmidt Company changed its name to the name of its trademark equipment. Teletype was responsible for the research, development and manufacture of data and record communications equipment, but it is primarily remembered for the manufacture of electromechanical teleprinters.
A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with computer card punches and, later, other devices to form multifunction machines.
A ballot marking device (BMD) or vote recorder is a type of voting machine used by voters to record votes on physical ballots. In general, ballot marking devices neither store nor tabulate ballots, but only allow the voter to record votes on ballots that are then stored and tabulated elsewhere.
