IT &computer MCQ section 2 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (b)

An electric organizer is a small calculator-sized computer, often with an in-built diary application but few other functions such as an address book and calendar. It normally has a small alphanumeric keypad and an LCD screen of one, two or three lines.

Answer: (a)

DOS ("Disk Operating System) is an acronym for several closely related operating systems that dominated the IBM PC compatible market between 1981 and 1995, or until about 2000 including the partially DOS-based Microsoft Windows versions 95, 98, and Millennium Edition.

Answer: (a)

A supercomputer is used for processing information on quantum mechanics, large scale weather forecasting, molecular studies, polymer research, to solve mathematical problems, wind tunnel research, and chemical composition.

Meteorologists use them to do research on the climate and global warming. It was first created in 1960.

Answer: (a)

A byte is a unit of digital information in computing and telecommunications that most commonly consists of eight bits.

Historically, a byte was the number of bits used to encode a single character of text in a computer and for this reason, it is the basic addressable element in many computer architectures.

Answer: (a)

Principal components of a processor (CPU) include the arithmetic logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that fetches instructions from memory and “executes” them by directing the coordinated operations of the ALU, registers and other components.