Hard | MCQs

Explanation

Explanation

The hard disk is a secondary storage device, which is designed to store data permanently.

Explanation

Three types of bus are used.

Address bus: carries memory addresses from the processor to other components such as primary storage and input/output devices. 

Data bus : carries the data between the processor and other components.

Control bus: carries control signals from the processor to other components.

Explanation

Hard Disk is an example of Magnetic Storage and Secondary storage.

The hard disk was invented on September 13, 1956, by an IBM team led by Rey Johnson

The commercial usage of hard disk drives (HDD) began in 1957

Rey Johnson (considered as “father” of the disk drive).

A computer hard disk drive is a non-volatile data storage device.

Hard Disk is an example of Magnetic Storage

Explanation

Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft.

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RY 13-12-202

Explanation

We generally use to between key and success.

To is a preposition here.

Regular hard work is key to success means باقاعدہ محنت کامیابی کی کنجی ہے

Explanation

By is a preposition here.

We generally use verb + ing after a Preposition. 

They succeeded by working hard.

AGM  5.2.23

Explanation

com

Explanation

ABS stands for Atanasoff-Berry computer.

Explanation

An arithmetic-logic unit (ALU) is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words.