TCP/IP (transmission control protocol/Internet protocol) TCP/IP is the set of rules, or protocol, for sending and receiving data over the Internet.
Teacher The duties of a teacher typically include design, facilitate, and teach the computer instruction component. Prepare execute lesson plans, assigning tasks, and evaluating student work and progress. Develop course syllabus, assess, supervise, and motivate high school students.
Telecommuting Working at home using a computer and modem to communicate with employers and clients.
Teleconferencing This occurs when a television picture links physically separated parties, is used by business people to meet without having to travel.
Telemarketing Telemarketers phone potential customers to market goods and services.
Telnet Telnet is a remote login service provided by dedicated computer networks on the Internet. The service is provided by companies and universities for home users to gain access to services.
Terabyte 1024 gigabytes of consecutive data. See bytes.
Template A specification of the number of fields and the kinds of data which fields in a database record are allowed to hold.
Terminal The combination of a monitor and keyboard to input and check data and to view output. A terminal does not necessarily include a processor.
Third generation languages (3GLs) Third generation languages are translated from English-type words to machine code. FORTRAN, BASIC, Pascal and C are third generation languages.
Time sharing A time sharing system allows simultaneous access to data on a mainframe computer by many users. An example is a bank’s bankcard system.
Touch Screen This device allows data to be inputted by touching a screen with the finger or other objects. The surface of the screen consists of a number of programmed touch points each of which may trigger a different action selected by the user.
Touch terminal Also called a touch screen. A device that allows data to be input by touching a screen with the finger or other object. The surface of the screen consists of a number of programmed touch points each of which may trigger a different action when selected by the user.
Trace table Manual traversal of a model system, also known as a structured walk through.
Track The path on a tape, disk or drum on which data are stored. On a disk these paths are concentric circles; on a tape there are several tracks parallel to the edge of the tape; on a drum there are bands of equal size along the circumference of the drum.
Trackball This is a ball used in a small external box or adjacent to or in the same unit as the keyboard; the trackball is rolled with the finger to move the cursor.
Trackpad This is a touch sensitive pointing device that is commonly found on most laptops as well as some brands of smart founds.
Transfer rate is a standard metric that is used to measure the speed at which data or information travels from one location to another. It is often expressed in bits per second.
Transaction files A transaction file is a temporary file which is used to update the master file after a certain time. A transaction log keeps a record of changes to the transaction file.
Transmission errors Transmission errors occur when data is sent from one computer to another. The data received by one system is not the same as that transmitted by the sender.
Trojan horse: This is a software they thought was legitimate but was in fact malicious. Once inside your computer, a Trojan horse can do anything from record your passwords by logging keystrokes (known as a keystroke logger) to hijacking your webcam to watch and record your every move.
Trolling The act of deliberately, cleverly, and secretly irritating person, usually via the internet, using dialogue within chat rooms or any form of social media.
Two's complement A method of representing numbers in which the computer does not perform subtraction in the normal way but inverts digits to be subtracted and adds to them.