Page 16 - TP_Play_V2.1_class8
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Exercise
A. Tick ( ) the correct option.
1. In the binary number system, the right-most digit is called ..........................
a. MSD b. LSD
c. BSD d. Base
2. What is the another name for base 2?
a. Binary number system b. Hexadecimal number system
c. Decimal number system d. Octal number system
3. In hexadecimal number system, decimal numbers from 10 to 15 are represented by ..........................
a. Letters E to J b. Letters H, E, X, D, E, C
c. Letters U to Z d. Letters A to F
4. The decimal number (345) is equivalent to ..........................
10
a. (101011001) b. (110111001)
2 2
c. (111011101) d. (111110001)
2 2
5. In binary addition, 0 + 1 is equal to ..........................
a. 0 b. 1
c. 10 d. 2
B. Write ‘T’ for true and ‘F’ for false.
1. A number system is simply a method of counting. ...............
2. The base of decimal number system is 8. ...............
3. In binary subtraction, binary number of lower value is subtracted from the binary
number of higher value. ...............
4. The size of the Nibble is 4 bits. ...............
5. The hexadecimal number system consists of 16 digits. ...............
C. Fill in the blanks using the words given below:
binary, 0, 8, 10, decimal number
1. In binary subtraction, 1 – 1 equals to ...................................
2. The base of .................................. system is 10.
3. In binary addition, 1 + 1 is equal to ...................................
4. The octal number system consists of .................................. digits.
5. Computer system understands .................................. numbers.
14 Play (Ver. 2.1)-VIII

