Data Dictionary - T (continued)

T

  • Target Computer
  • TCP/IP
  • Telecommuting
  • Teleprocessing
  • Tera
  • Terabyte
  • Terminal Emulation
  • Track
  • Track-to-Track Seek Time
  • Thrashing
  • TTY

Target Computer
The computer that receives data from a communications device, a hardware add-in, or a software package.

TCP/IP
Acronym for Transport Control Protocol/Interface Program, a software protocol developed by the Department of Defense for communications between computers.

Telecommuting
Also called electronic commuting. The practice of working in one location (often, at home) and communicating with a main office in a different location through a personal computer equipped with modem and communications software.

Teleprocessing
A term originated by IBM; the use of a terminal or computer and communications equipment to access computers and computer files located elsewhere.

Tera
Abbreviated T. A prefix meaning base 10 to the power of 12 million in the American numbering system, 1 million million in British numbering.

Terabyte
see byte

Terminal Emulation
The technique of imitating a terminal by using software that conforms to a standard such as the ANSI standard for terminal emulation. Terminal-emulation software can be used to make a microcomputer act as if it were a particular type of terminal while it is communicating with another computer, such as a mainframe.

Track
A concentric set of magnetic bits on the disk which can further divided into sectors of 512 bytes each.

Track-to-Track Seek Time
see seek time

Thrashing
The state of a virtual memory system that is spending almost all its time swapping pages in and out of memory rather than executing applications.

TTY
Abbreviation for teletypewriter. A low-speed communications device that consists of a keyboard and a printer. Each keystroke on the sending machine generates a character code that is sent to the receiving machine, which prints the character. Early computers used teletypewriters as terminals. Today’s computers replace the printers of teletypewriters with video displays, and the term TTY usually refers to a situation in which a video display is treated like a teletypewriter or behaves like (emulates) one.

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