Computer | MCQs

Explanation

DRAM memories need a refresh.

Dynamic Random Access Memory (DRAM).

DRAM must be refreshed many times per second to store information, otherwise, it will lose what it is holding.

DRAM is the most common type of memory in use today.

ND18-4-2023

Explanation

ARPA stand for Advanced Research Projects Agency.

ARPANET was the basis of the Internet.

ARPANET Concept first published in 1967.

ARPANET was developed by the U.S.A.

Explanation

Explanation

A computer mainly consists of electronic circuits.

They include integrated circuits (chips) and other components that enable the processing and transmission of data.

Explanation

Explanation

Full duplex mode allows communication in both directions simultaneously.

In contrast, half duplex mode permits communication in both directions, but not at the same time

Simplex mode allows communication only in one direction.

Explanation

A joystick sometimes called a flight stick.

The joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling.

ND18-4-2023

Explanation

• The actual working area of the Computer's Microsoft Excel is a worksheet.
• The title bar in MS Excel displays the name of the workbook.
• The main window in a computer spreadsheet is called a workbook.
  

Explanation

Machine language, or machine code, is a low-level language comprised of binary digits (1 and 2).

Since computers are digital devices, they only recognize binary data.

Explanation

A scanner scans images, printed text, handwriting or an object and converts it to a digital image. 

Scanner is an input device. 

Scanner founder: Russell Kirsch

Russell Kirsch belongs to USA.