MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -An OS acts as an interface between the users and the computer. The first OS was developed in the mid 1950s by General Motors for IBM 701. It was called GMOS. Operating systems enabled computers to process multiple programs at the same time and reduce idle time.

Detailed explanation-2: -Unix was originally written in assembly language, but was soon rewritten in C, a high-level programming language. Although this followed the lead of CTSS, Multics and Burroughs MCP, it was Unix that popularized the idea.

Detailed explanation-3: -The Unix Operating System is the oldest operating system that has ever existed. Unix can run multiple application programs simultaneously. Unix was firstly written in the low-level PDP-7 assembler language before it was rewritten in 1972 with the new C programming language.

Detailed explanation-4: -UNIX came way first. It was developed back in 1969 by AT&T employees working at Bell Labs. Linux came about in either 1983 or 1984 or 1991, depending upon who’s holding the knife.