Important Paper Computer 

1. If we replace each ON switch with 1 and each OFF switch with 0 then we get a number system, called
(a) binary number system
(b) decimal number system
(c) hexadecimal number system
(d) octal number system
(e) None of above
Ans (a)
2. Which of the following is a binary number?
(a) 36
(b) 10
(c) 45
(d) 29
(e) 12
Ans (b)
3. Octal numbers are used
(a) In computer hardware
(b) when binary numbers are too long
(c) internal to the computer
(d) in preference to ‘hex’ number
(e) None of above
Ans (b)
4. Which of the following(s) is/are the octal number(s)?
(a) 64
(b) 14
(c) 134
(d) All of these
(e) None of these
Ans (d)
5. Which of the following number system has a base of 16 ?
(a) Hexadecimal number system
(b) Octal number system
(c) Decimal number system
(d) Binary number system
(e) Sixteen number system
Ans (a)
6. When counting in hexadecimal, each digit position can be increment from ___to ____
(a) 0; B
(b) 0; D
(c) 0; E
(d) 0;F
(e) 0;R
Ans (d)
7. What is the method used for the conversion of decimal to any other number system?
(a) remainder method
(b) hexa method
(c) octal method
(d) decimal method
(e) binary method
Ans (a)
8. Conversion of decimal number (99)10 to its binary number equivalent is
(a) (11 00011)2
(b) (100011)2
(c) (111 0001)2
(d) (11 11000)2
Ans (a)
9. Conversion of decimal number (71)10 to its binary number equivalent is
(a) (110011)2
(b) (1110011)2
(c) (0110011)2
(d) (1000111)2
(e) None of these
Ans (d)
10. Conversion of decimal number (61)10 to its binary number equivalent is
(a) (110011)2
(b) (11001110)2
(c) (111101)2
(d) (11111)2
(e) None of these
Ans (c)
For More Important Paper Computer - Click Here