A computer is a programmable device that can automatically perform a sequence of calculations or other operations on data once programmed for the task. It can store, retrieve, and process data ...

Understanding computers and related systems. It includes a working vocabulary of computer and information system components, the fundamental principles of computer processing and a perspective for how ...

(1) In the IT department of a large organization, systems programmers are technical experts on some or all of the computer's system software (operating systems, networks, DBMSs, etc.). They are ...