#### 11th Standard Computer Applications Number Systems English Medium Free Online Test One Mark Questions 2020 - 2021

11th Standard

Reg.No. :
•
•
•
•
•
•

Computer Applications

Time : 00:20:00 Hrs
Total Marks : 20

20 x 1 = 20
1. Which is a basic electronic circuit which operates on one or more signals?

(a)

Boolean algebra

(b)

Gate

(c)

Fundamental gates

(d)

Derived gates

2. A + A =?

(a)

A

(b)

O

(c)

I

(d)

A

3. Data means..............

(a)

a set of values

(b)

a set of information

(c)

a set of records

(d)

a set of files

4. How the message represented in computers?

(a)

Information

(b)

data

(c)

Knowledge

(d)

all of these

5. The processed data is called

(a)

Information

(b)

Knowledge

(c)

datum

(d)

files

6. The most basic unit of information in a digital computer is called a

(a)

word

(b)

data

(c)

nibble

(d)

bit

7. Which establishment done convention using groups of 8 bits as a basic unit of storage medium?

(a)

Apple

(b)

Microsoft

(c)

IBM

(d)

DELL

8. Which is considered as the basic unit of measuring the memory size in the computer?

(a)

Bit

(b)

Byte

(c)

Nibble

(d)

Word

9. The number of bits a processor can read I write at a time is called............

(a)

nibble

(b)

word

(c)

byte

(d)

none of these

10. A word can have a length of..........

(a)

2,5,10 bits

(b)

15,25,50 bits

(c)

16,32,64 bits

(d)

64,128,255 bits

11. A number system can be derived from a..............

(a)

bit

(b)

byte

(c)

(d)

nibble or word

12. Which of the following is not a standard number system?

(a)

Pentagon

(b)

(c)

Decimal

(d)

Binary

13.  Which digit is not allowed in hexadecimal number system?

(a)

G

(b)

B

(c)

E

(d)

D

14. How many parameters can be considered to know the magnitude of the number?

(a)

2

(b)

4

(c)

3

(d)

5

15. What are the two symbols used in Binary number system?

(a)

0,1

(b)

+, -

(c)

2,4

(d)

20,21

16. Expansion of MSB is......

(a)

Most Sign Bit

(b)

Most Significant Bit

(c)

Medium Signal Bit

(d)

Most Significant Byte

17. The decimal value of 1010.012 is

(a)

10.5

(b)

10.25

(c)

10.05

(d)

10.025

18. The Right most bit on the binary digit carries the smallest weight is called..........

(a)

LSB

(b)

MSB

(c)

RMB

(d)

LMB

19. The most commonly used number system is......

(a)

Binary

(b)

(c)

Decimal

(d)

Oct

20. Repeated division method is also known as.........

(a)

Expansion method

(b)

Divide by 2 method

(c)

Double dabble method

(d)

None of these