Explanation

For using a variable in C++, we have to first define it to tell the compiler about its existence so that compiler can allocate the required memory to it.

AGM 24-12-2022

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

A communications device is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device.

Explanation

DOS stands for disk operating system

CD stands for Compact Disk. 

The CD command is a command-line shell command used to change the current working directory in various operating systems. 

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

An entry point is the point at which execution of program starts.

In C++, it is the main () function.

AGM 17-12-2022

Explanation

Keywords, also known as reserved words, have special meaning to the C++ compiler and are always written or typed in short(lower) cases.

AGM 17-12-2022

Explanation

USB Flash also known as: USB stick 

USB Flash also known as: USB thumb stick 

USB Flash also known as: USB pen drive 

A USB flash drive is a plug-and-play portable storage device that uses flash memory.

AGM 17-12-2022

Explanation

RAM stands for Random Access Memory.

RAM has two basic following types:

1. Dynamic

2. Static 

AGM 17-12-2022

Explanation

MICR reads characters printed in a special magnetic ink into the computer.

MICR stands for magnetic ink character recognition.

AGM 17-12-2022