The term DOS is referred to as disk operating system, but it is most often used as a shorthand for MS-DOS. Originally developed by Microsoft for IBM, it is an acronym for several computer operating systems that were operated by using the command line.

Swapping is the process used to access data being stored in a hard disk and to bring it into the RAM, so that it can be used by the application program.

It is a collection or sequence of instructions that performs a specific task when executed by a computer. Without programs, computers are useless.

Job Control Language (JCL) is the command language of Multiple Virtual Storage, which is the commonly used operating system in the IBM Mainframe.

It was created to facilitate the automatic installation of operating systems. OZ is an operating system for the laptop computer called MacLite.

It is a form of automatic memory management. It is the automatic recycling of dynamically allocated memory.

It refers to maintaining and assuring the accuracy and consistency of data over its entire life-cycle. It is a fundamental component of information security.

A program that controls spooling -- putting jobs on a queue and taking them off one at a time. Most operating systems come with one or more spoolers, such as a print spooler for spooling documents.

It allows the user to perform more than one computer task at a time.

It is a level of computer responsiveness that a user senses as sufficiently immediate or that enables the computer to keep up with some external process. It controls, analyses and monitors the real world events.

It is a storage medium device where data are recorded by various electronic, magnetic, optical, or mechanical changes to a surface layer of one or more rotating disks.

It is system software that manages computer hardware and software resources and provides common services for computer programs.

It is a design approach that subdivides a system into smaller parts called modules, that can be independently created and then used in different systems.

It is the transformation of a string of characters into a usually shorter fixed-length value or key that represents the original string.

It is an error in the syntax of a sequence of characters that is intended to be written in a particular programming language. Syntax errors occur during the parsing of input code and are caused by grammatically incorrect statements.