Explanation

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

Note: ROM and RAM are two main types of Primary Storage Device 

Explanation

ENIAC, in full Electronic Numerical Integrator and Computer, the first programmable general-purpose electronic digital computer.

ENIAC was completed in 1945 and first put to work for practical purposes on December 10, 1945.

Explanation

Explanation

HTTPS stands for HyperText Transfer Protocol Secure.

It ensures that data exchanged between the browser and website is encrypted and secure.

Explanation

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

Scanner is an output device. 

Scanner founder: Russell Kirsch

Russell Kirsch belongs to USA.

Explanation

OCR scans the text optically, character by character, converts them into a machine readable code, and stores the text on the system memory.

OCR is an input device used to read a printed text.

AGM 24-12-2022

Explanation

DOS stands for Disk Operating System.

DOS was the Microsoft-marketed version of the first operating system (OS) to be widely installed on personal computers.

AGM 24-12-2022

Explanation

Shift + Delete is used to delete the selected item permanently without placing the item in the Recycle Bin.

Explanation

computer memory capacity is expressed in multiples of a power of two.

it is measured in megabytes (MB) and gigabytes (GB).

A medium-sized novel contains about 1 MB of information.

1 MB is 1,024 kilobytes, or 1,048,576 (1024x1024) bytes, not one million bytes.

Similarly, one 1 GB is 1,024 MB, or 1,073,741,824 (1024x1024x1024) bytes.

Explanation

 The ASCII 7-bit code is a character-encoding scheme that uses 7 bits to represent characters.

- The number of bits in ASCII 7-bit code is 7.