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Key Punch
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. For Jacquard looms, the resulting punched cards were joined together to form a paper tape, called a "chain", containing a program that, when read by a loom, directed its operation.Bell, T.F. (1895) '' Jacquard Weaving and Designing'', Longmans, Green And Co. For Hollerith machines and other unit record machines the resulting punched cards contained data to be processed by those machines. For computers equipped with a punched card input/output device the resulting punched cards were either data or programs directing the computer's operation. Early Hollerith keypunches were manual devices. Later keypunches were electrom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNITYPER
The UNITYPER was an input device for the UNIVAC I computer manufactured by Remington Rand, which went on sale in mid-1951 but was not in operation until June 1952. It was an early direct data entry system. The UNITYPER accepted user inputs on a keyboard of a modified Remington typewriter, then wrote that data onto a metal magnetic tape Magnetic tape is a medium for magnetic storage made of a thin, magnetizable coating on a long, narrow strip of plastic film. It was developed in Germany in 1928, based on the earlier magnetic wire recording from Denmark. Devices that use magnet ... using an integral tape drive. The UNITYPER II was an input device for the UNIVAC II. The UNITYPER II was a reduced-size, reduced-cost version of the UNITYPER I subsequently developed as a text-to-tape transcribing device for the UNIVAC I system and released in 1953, also sold as a peripheral to the UNIVAC II. The original required individual motors and control amplifiers to advance, rewind, fast-for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herman Hollerith
Herman Hollerith (February 29, 1860 – November 17, 1929) was a German-American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting. His invention of the punched card tabulating machine, patented in 1884, marks the beginning of the era of mechanized binary code and semiautomatic data processing systems, and his concept dominated that landscape for nearly a century. Hollerith founded a company that was amalgamated in 1911 with several other companies to form the Computing-Tabulating-Recording Company. In 1924, the company was renamed "International Business Machines" ( IBM) and became one of the largest and most successful companies of the 20th century. Hollerith is regarded as one of the seminal figures in the development of data processing. Personal life Herman Hollerith was the son of German immigrant Georg Hollerith, a school teacher from Großfisch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Card Puncher - NARA - 513295
Card or The Card may refer to: * Various types of plastic cards: **By type *** Magnetic stripe card ***Chip card ***Digital card **By function ***Payment card ****Credit card ****Debit card **** EC-card **** Identity card **** European Health Insurance Card ****Driver's license * Playing card, a card used in games * Printed circuit board * Punched card, a piece of stiff paper that holds digital data represented by the presence or absence of holes in predefined positions. *In communications ** Postcard ** Greeting card, an illustrated piece of card stock featuring an expression of friendship or other sentiment * \operatorname, in mathematical notation, a function that returns the cardinality of a set * Card, a tool for carding, the cleaning and aligning of fibers * Sports terms ** Card (sports), the lineup of the matches in an event ** Penalty card As a proper name People with the name * Card (surname) Companies * Cards Corp, a South Korean internet company Arts and entertainment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CTR Census Machine
CTR may refer to: Engineering, science and technology * Counter mode (CTR mode), a cryptographic mode of operation for block ciphers * X-ray crystal truncation rod, a technique to measure properties of crystal surfaces * Current transfer ratio, in an opto-isolator device * Content Threat Removal, a cyber security technology that defeats content threats Government * Cooperative Threat Reduction, an initiative to secure and dismantle weapons of mass destruction in former Soviet Union states * Currency transaction report, a report about transactions that the Bank Secrecy Act requires U.S. financial institutions to file with the Internal Revenue Service Media, arts and entertainment * ''Contemporary Theatre Review'', a British academic journal of performing arts * '' Crash Team Racing'', Naughty Dog's 1999 video game for the Sony PlayStation ** ''Crash Team Racing Nitro-Fueled'', its 2019 remake Medicine * Cardiac resynchronization therapy * Cardio-thoracic ratio, a measure of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacquard Loom
The Jacquard machine () is a device fitted to a loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. The resulting ensemble of the loom and Jacquard machine is then called a Jacquard loom. The machine was patented by Joseph Marie Jacquard in 1804, based on earlier inventions by the Frenchmen Basile Bouchon (1725), Jean Baptiste Falcon (1728), and Jacques Vaucanson (1740). The machine was controlled by a "chain of cards"; a number of punched cards laced together into a continuous sequence. Multiple rows of holes were punched on each card, with one complete card corresponding to one row of the design. Both the Jacquard process and the necessary loom attachment are named after their inventor. This mechanism is probably one of the most important weaving innovations as Jacquard shedding made possible the automatic production of unlimited varieties of complex pattern weaving. The term "Jacquard" is not spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large, costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers. Primarily in the late 1970s and 1980s, the term home computer was also used. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with the machines. While personal computer users may develop their own applications, usually these systems run commercial software, free-of-charge software (" freeware"), which is most often proprietary, or free and open-source software, which is provided in "ready-to-run", or binary, form. Software for personal computers is typically developed and distributed independently from the hardware or operating system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time-sharing
In computing, time-sharing is the sharing of a computing resource among many users at the same time by means of multiprogramming and multi-tasking.DEC Timesharing (1965), by Peter Clark, The DEC Professional, Volume 1, Number 1 Its emergence as the prominent model of computing in the 1970s represented a major technological shift in the history of computing. By allowing many users to interact concurrently with a single computer, time-sharing dramatically lowered the cost of providing computing capability, made it possible for individuals and organizations to use a computer without owning one, and promoted the interactive use of computers and the development of new interactive applications. History Batch processing The earliest computers were extremely expensive devices, and very slow in comparison to later models. Machines were typically dedicated to a particular set of tasks and operated by control panels, the operator manually entering small programs via switches in order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Display Terminal
A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing data from, a computer or a computing system. The teletype was an example of an early-day hard-copy terminal and predated the use of a computer screen by decades. Early terminals were inexpensive devices but very slow compared to punched cards or paper tape for input, yet as the technology improved and video displays were introduced, terminals pushed these older forms of interaction from the industry. A related development was time-sharing systems, which evolved in parallel and made up for any inefficiencies in the user's typing ability with the ability to support multiple users on the same machine, each at their own terminal or terminals. The function of a terminal is typically confined to transcription and input of data; a device with significant local, programmable data-processing capability may be called a "smart terminal" or fat client. A te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Terminal
A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing data from, a computer or a computing system. The teletype was an example of an early-day hard-copy terminal and predated the use of a computer screen by decades. Early terminals were inexpensive devices but very slow compared to punched cards or paper tape for input, yet as the technology improved and video displays were introduced, terminals pushed these older forms of interaction from the industry. A related development was time-sharing systems, which evolved in parallel and made up for any inefficiencies in the user's typing ability with the ability to support multiple users on the same machine, each at their own terminal or terminals. The function of a terminal is typically confined to transcription and input of data; a device with significant local, programmable data-processing capability may be called a "smart terminal" or fat client. A t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pertec Computer
Pertec Computer Corporation (PCC), formerly Peripheral Equipment Corporation (PEC), was a computer company based in Chatsworth, California which originally designed and manufactured peripherals such as floppy drives, tape drives, instrumentation control and other hardware for computers. Pertec's most successful products were hard disk drives and tape drives, which were sold as OEM to the top computer manufacturers, including IBM, Siemens and DEC. Pertec manufactured multiple models of seven and nine track half-inch tape drives with densities 800CPI ( NRZI) and 1600CPI ( PE) and phase-encoding formatters, which were used by myriad original equipment manufacturers as I/O devices for their product lines. In the 1970s, Pertec entered the computer industry through several acquisitions of computer producers and started manufacturing and marketing mostly minicomputers for data processing and pre-processing. This split up Pertec into two companies. Pertec Peripherals Corporation (PPC) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inforex 1300 Systems
Inforex Inc. corporation manufactured and sold key-to-disk systems in the 1970s and mid-1980s. The company was founded by ex- IBM engineers to develop direct data entry systems that allowed information to be entered on terminals and stored directly on disk drives, replacing punched cards and keypunch machines which had been the dominant tools for data entry since the turn of the twentieth century. Background Information Key-to-disk systems were systems that took data entered by users from keypunch-like keyboards and held the information on a hard disk. The information was then transferred from disk to 1/2 inch tape for processing on the user's mainframe equipment. At the time data gathering in large scale for processing on a mainframe computer was a labor-intensive expensive endeavor. For example, a typical sales order might go through the following steps: 1) Order written on contract, collected by the salesman. 2) Order transferred to paper order sheet (unusually with m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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