Notebook computer sometimes called a palm top computer, suitable for carrying in a pocket. The computer must load an operating system such as DOS, Windows or Linux before it can operate any other program such as a word-processor. OS see operating system . PC see personal computer . Usually refers to an IBM compatible machine.
Pointer see mouse pointer .
Program in essence a set of statements that the computer executes to perform operations. A full application such as a word-processor or a Web browser is a complex program. The terms software, application and program tend to be used interchangeably in general useage. Reference List a record of all the sources referred to in the work. See also bibliography.