IT &computer MCQ section 5 MCQ Questions & Answers Detailed Explanation

Answer: (b)

RAM is not a secondary storage device. Storage consists of storage devices and their media not directly accessible by the Central Processing Unit (CPU).

Secondary storage is all data storage that is not currently in a computer’s primary storage or memory.

Answer: (d)

A compiler is a computer program that transforms source code written in a programming language into another computer language the target language, often having a binary form known as object code.

Answer: (b)

The rate at which scanning is repeated in a CRT is called refresh rate.

Answer: (c)

The IBM PC XT was the successor of the IBM PC. The XT stands for EXtended Technology and was introduced in early 1983. It had enhanced features: CGA graphic card, hard disk, more memory, and no more tape port. The term PC-XT refers to personal computer extended Technology.

Answer: (a)

Morphing is a special effect in motion pictures and animations that changes (or morphs) one image into another through a seamless transition. Most often it is used to depict one person turning into another through technological means or as part of a fantasy or surreal sequence.

Answer: (b)

The polymorphic virus changes each time it is installed to avoid detection by antivirus software. The changes do not affect the virus’ functionality but rather change the virus’ signature.

A virus signature is a pattern that can be used to identify a virus, typically a series of bytes that make up the virus code.