Page 15 - Trackpad_V1_Book 7_Flipbook
P. 15
Hashtag
#Number System: Way to express quantities used for counting, comparing amounts,
performing calculations and for representing values
#Conversion: Process of changing or causing something to change from one state to another
REVISIT
▶ The smallest piece of data that can be recognised and used by the computer is known as a bit or a binary digit.
▶ A number system is a way to express quantities used for counting, comparing amounts, performing
calculations and representing values.
▶ A number system is made up of eight symbols, 0 to 9, is known as the decimal number system.
▶ A number system is made up of only two symbols, 0 and 1, is known as the binary number system.
▶ A number system is made up of eight symbols, 0 to 7, is known as the octal number system.
▶ A number system is made up of sixteen symbols, 0 to 9, and A to F, is known as the hexadecimal number system.
1. Tick ( ) the correct option.
a. Which of the following number system is made up of only two digits?
(i) Decimal Number System (ii) Binary Number System
(iii) Octal Number System (iv) None of these
b. Octal Number System is made up of which digits?
(i) 0 to 7 (ii) 0 to 9
(iii) 0 and 1 (iv) Both (i) & (ii)
c. Which of the following is also known as the base-16 system?
(i) Octal Number System (ii) Decimal Number System
(iii) Hexadecimal Number System (iv) Binary Number System
d. Which of the following digits represent the ON state in the number system?
(i) 0 (ii) 1
(iii) -1 (iv) None of these
e. In a binary number system, the rightmost digit before the fractional point is called __________ .
(i) MSD (ii) LSD
(iii) OSD (iv) None of these
f. What is the other name for base?
(i) radix (ii) Foundation
(iii) Both (i) & (ii) (iv) Radian
Number System 13

