The main function of ………………….is to coordinate the user and outside devices used in computer system.

Related MCQs

• While operating a computer, user enters some commands………………. converts these commands into a version which is readable by computer memory.
• A computer ……………is a computer peripheral device that produces a hard copy (permanent human-readable text and/or graphics, usually on paper) from data stored in a computer connected to it.
• ………………..is the study of ethics pertaining to computer networks, encompassing user behavior and what networked computers are programmed to do, and how this affects individuals and society.
• A …………..is a small device that a computer user pushes across a desk surface in order to point to a place on a display screen and to select one or more actions to take from that position.
• ……………..is a malicious software program written intentionally to enter a computer without the user's permission or knowledge.
• The first general purposes programmable electronic computer was the Electronic Numerical Integrator and Computer (ENIAC), built by J. Presper Eckert and John V. Mauchly at the University of………………..
• A computer …………………is an important device that allows a person to enter symbols like letters and numbers into a computer.
• An ………………..is a set of software that manages computer hardware resources and provides common services for computer programs.
• The first micro computer was ------------------ a) PDP-1 b) IBM-1401 c) CDC3600 d) Altair8800 31. Steve Vozniak and Steve Jobs began the computer company called ------------------
• During the World war II, a young German engineer, ……………studied the application of electronic analog circuits for the guidance and control system of liquid-propellant rockets and developed a special purpose analog computer, the ‘Mischgerat’ and integrated it into the rocket.