The most important reasons for declaring a variable as a particular data type is to allocate appropriate space in memory. As per the stored program concept, every data should be accommodated in the main memory before they are processed. So, C++ compiler allocates specific memory space for each and every data handled according to the compiler's standards.

i = 7
j = 11

Characters enclosed in single quotes are character constants in c++ so 'a' is a  character constant. Character enclosed in Double quotes are strong constants in c++ so "a" is a string constant.

Binary equivalent of 22 - 10110₂
8 bit format     -00010110₂
1's complement  -11101001₂

This type of scheduling is also known as Time sharing scheduling process. In this, each program is given a fixed amount of time to execute.

Resources can be used in different locations. Improves interaction with customers and clients. Reduces load on host computers. The data can be exchanged via email and chat.

It is an in-built word processor application in windows OS to create and manipulate text windows

i) Data
ii) Variables
iii) Control flow
iv) Functions

There are three different types of chameleons: red chameleons, green chameleons, and blue chameleons.

The base value of a number is also known as the radix.

Dot matrix printer and Line Matrix Printer.

RAM is a volatile memory, which means that the information stored in it is not permanent. As soon as the power is turned off, whatever data that resided in a RAM is lost. It allows both read and write operations. ROM retains its contents even when the computer is turned off. So, ROM is called as a non-volatile memory.

While hertz can be used to measure wave frequencies, it is also used to measure the speed of computer processors.

In binary, a negative number may be represented by prefixing a digit 1 to the number while a positive number may be represented by prefixing a digit 0.

The conversion of a decimal number into the binary using Repeated-division method is called double dabble method.

The task bar contains (from left to right) the Start button, shortcuts to various programs, minimized programs and another section of shortcuts that includes sound volume, printers and the time.

The number of bits that can be processed by a processor in a single instruction is called its word Size.

(i) MHz (Mega Hertz)
(ii) GHz (Giga Hertz)

The types of monitors available such as CRT (Cathode Ray Tube), LCD (Liquid Crystal Display) and LED (Light Emitting Diodes).

The scanner converts any type of printed or written information including photographs into digital pulses, which can be manipulated by the computer.

Natural Language Processing is the ability of a computer program to understand human language. It is a component of artificial intelligence.

(i) Very Large Scale Integrated Circuits.
(ii) Ultra Large Scale Integration

IBM 1401, IBM 1620, UNIVAC 1108

(i) The processor switches rapidly between various processes.
(ii) After the stipulated time is over, the CPU shifts to next task in waiting, so this operating system employs round robin scheduling technique.

(i) CUI   
(ii) GUI.