video display terminal - definitie. Wat is video display terminal
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Wat (wie) is video display terminal - definitie

COMPUTER INPUT/OUTPUT DEVICE; AN ELECTRONIC OR ELECTROMECHANICAL HARDWARE DEVICE THAT IS USED FOR ENTERING DATA INTO, AND DISPLAYING DATA FROM, A COMPUTER OR A COMPUTING SYSTEM UPDATE PROGRAMMING
Block-oriented terminal; Character-cell and block-oriented terminals; Character-oriented terminal; Computer terminals; Dumb terminals; Video terminal; Glass tty; Serial terminal; Text terminal; Text console; Hard TTY; Glass TTY; Intelligent terminal; Character terminal; Data terminal; Glass teletypes; Glass teletype; Video display terminal; Video display terminals; Terminal host; Dumb terminal; Physical terminal; Dumb Terminal; Data terminals; Block mode terminal; Graphics terminal; Graphical terminal; Printing terminal; Hard-copy terminal; Decwriter; Console terminal; Electronic terminal; Character-based terminals; Terminal (computing)
  • DEC]] [[VT100]], a widely emulated computer terminal
  • IBM 2250 Model 4, including [[light pen]] and programmed function keyboard
  • [[IBM 2260]]
  • Nano]] text editor running in the [[xterm]] terminal emulator
  • A typical text terminal produces input and displays output and errors
  • A Televideo [[ASCII]] character mode terminal

video display terminal         
glass tty         
/glas T-T-Y/ or /glas ti'tee/ A terminal that has a display screen but which, because of hardware or software limitations, behaves like a teletype or some other printing terminal, thereby combining the disadvantages of both: like a printing terminal, it can't do fancy display hacks, and like a display terminal, it doesn't produce hard copy. An example is the early "dumb" version of Lear-Siegler ADM 3 (without cursor control). See tube, tty; compare dumb terminal, {smart terminal}. See "TV Typewriters" for an interesting true story about a glass tty.
intelligent terminal         
<hardware> (or "smart terminal", "programmable terminal") A terminal that often contains not only a keyboard and screen, but also comes with a disk drive and printer, so it can perform limited processing tasks when not communicating directly with the central computer. Some can be programmed by the user to perform many basic tasks, including both arithmetic and logic operations. In some cases, when the user enters data, the data will be checked for errors and some type of report will be produced. In addition, the valid data that is entered may be stored on the disk, it will be transmitted over communication lines to the central computer. An intelligent terminal may have enough computing capability to draw graphics or to offload some kind of front-end processing from the computer it talks to. The development of workstations and personal computers has made this term and the product it describes semi-obsolescent, but one may still hear variants of the phrase "act like a smart terminal" used to describe the behaviour of workstations or PCs with respect to programs that execute almost entirely out of a remote server's storage, using said devices as displays. The term once meant any terminal with an addressable cursor; the opposite of a glass tty. Today, a terminal with merely an addressable cursor, but with none of the more-powerful features mentioned above, is called a dumb terminal. There is a classic quote from Rob Pike (inventor of the blit terminal): "A smart terminal is not a smart*ass* terminal, but rather a terminal you can educate". This illustrates a common design problem: The attempt to make peripherals (or anything else) intelligent sometimes results in finicky, rigid "special features" that become just so much dead weight if you try to use the device in any way the designer didn't anticipate. Flexibility and programmability, on the other hand, are *really* smart. Compare hook. (1995-04-14)

Wikipedia

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 terminal that depends on the host computer for its processing power is called a "dumb terminal" or a thin client. A personal computer can run terminal emulator software that replicates functions of a real-world terminal, sometimes allowing concurrent use of local programs and access to a distant terminal host system, either over a direct serial connection or over a network using, e.g., SSH.