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11th Standard English Medium Computer Science Subject Number Systems Creative 3 Mark Questions with Solution Part - I updated Creative Questions

Published on: 13/05/2022

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Std: 11th Standard - Computer Science

chapter: - Creative Questions

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Questions:

Generic 3

5 x 3 = 15

What is binary number system?

Add 71A3₁₆ + 142B₁₆

Complete the sequence of following binary numbers: 100, 101, 110,____,_____, ______,______

(300)₁₀ \(\rightarrow \) (?₂) \(\rightarrow \) (?₈) \(\rightarrow \) (?)₁₆

Why is the number conversion necessary?

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Answers Key:

Generic 3

5 x 3 = 15

There are only two digits in the Binary, system, namely, 0 and 1. The numbers in the binary system are represented to the base 2 and the positional multipliers are the powers of2. The left most bit in the binary number is called asthe Most Significant Bit (MSB) and it has the largest positional weight. The right most bit is the Least Significant Bit (LSB) and has the smallest positional weight.

7 1 A 3 3 + B = 3 +11 = 14 = E
= 1 4 2 B A + 2 = 10 + 2 = 12 = C
8 5 C E

100 , 101 , 110, 111, 1000, 1001, 1010

(300)₁₀\(\rightarrow \)(100101100)₂ \(\rightarrow \) (454)₈ \(\rightarrow \) (12C)₁₆

The number conversion is necessary because us enters the data into the computer in decimal form only and the computer is then expected to convert the decimal number to other number systems which it understands.