Real time system a system that must satisfy the

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Unformatted text preview: ll as the overall performance of a computer system. Program: A set of sequenced instructions (written in a language that can be understood by a computer) used to direct and control the operations of the computer in order to solve a problem or to perform a particular task. Program Control (PC) register: A register, which holds the address of the next instruction to be executed. Program Design Language (PDL): See pseudocode. Program library: A collection of complete programs, subroutines, and program modules that have already been developed, tested, and documented usually as a result of other programming projects. Programmable Read-Only Memory (PROM): Similar to read only memory with the exception that these chips can be reprogrammed by using special external equipment. Programmer: One who designs, writes, tests, and maintains computer programs. PROgramming in LOGic (PROLOG): A nonprocedural programming language that deals with the use of a formal logic notation to communicate some computational process to a computer. Programming language: A language used to express algorithms in computer understandable form. Protocol: See communication protocol. Prototyping: The process of developing a small working model of a final operational system to demonstrate the concepts, look, and feel of the final system. Proxy server: A computer system that is specially configured to allow other computers of an organization to interact with the Internet only through it. Pseudo disk: See RAM disk. Pseudocode: A programming analysis tool that is used for planning program logic. It is an imitation of actual computer instructions written in a natural language such as English. Also known as Program Design Language (PDL). Public-domain software: A software that is available for free or for a very nominal charge from the bulletin boards or user-group libraries on the Internet. Also known as shareware or user-supported software. Q Quantum: See time slice. Query By Example (QBE): A software tool that enables database uses to specify search criteria by providing a front end for th...
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