Question

5. What is a light sensitive pointing device?
Your answer
6. How many types of number system are present in computer world?
Three
7
ch language is understood by the computer directly?
Binary language
8. All the physical components of a computer are called its -


please answer all in one word​

Answer 1

A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's CRT display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.

Table of the Numbers Systems with Base, Used Digits, Representation, C language representation:

Number system Base Used digits

Used digitsBinary 2 0,1

0,1Octal 8 0,1,2,3,4,5,6,7

0,1,2,3,4,5,6,7Decimal 10 0,1,2,3,4,5,6,7,8,9

0,1,2,3,4,5,6,7,8,9Hexadecimal 16

0,1,2,3,4,5,6,7,8,9, A,B,C,D,E,F