#### 11th Standard Computer Applications Number Systems English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021

11th Standard

Reg.No. :
•
•
•
•
•
•

Computer Applications

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

Answer all the questions

20 x 1 = 20
1. How many bytes does 1 KiloByte contain?

(a)

1000

(b)

8

(c)

4

(d)

1024

2. "75% of Men likes cricket" is............

(a)

Information

(b)

data

(c)

knowledge Record

(d)

Record

3. In a computer, a data is converted into

(a)

ASCII form

(b)

BCD form

(c)

Binary form

(d)

Octal form

4. Expansion of BIT is............

(a)

BASIC DIGITS

(b)

BINARY DIGIT

(c)

BINARY INFORMATION TECHNOLOGY

(d)

BASE DIGIT

5. 1 Byte = ........... bits.

(a)

8

(b)

16

(c)

1024

(d)

512

6. Which is used to measure the number of bits in each word?

(a)

Word length

(b)

length

(c)

Size

(d)

word size

7. Who coined the term byte?

(a)

Charles Babbage

(b)

John von newmann

(c)

Werner Buchholz

(d)

Herman Hollerith

8. How many standard number system are there to use?

(a)

2

(b)

4

(c)

8

(d)

16

(a)

6

(b)

10

(c)

16

(d)

8

10. A Latin prefix Deci means.........

(a)

2

(b)

8

(c)

16

(d)

10

11. The base value of a number is also known as.....

(a)

length

(b)

(c)

data

(d)

Position

12. Each binary digit weight is expressed as a power of.......

(a)

1

(b)

0

(c)

0,1

(d)

2

13. Expansion of LSB is

(a)

Least Significant Byte

(b)

Least Sign Bit

(c)

Least Significant Bit

(d)

Left Significant Bit

14. The left most bit on the binary digit carries the largest weight is called......

(a)

LSB

(b)

MSB

(c)

Word

(d)

Byte

15. How many unique symbols in Octal number system?

(a)

4

(b)

16

(c)

2

(d)

8

16. How many procedures are there to convert from decimal to binary?

(a)

2

(b)

4

(c)

8

(d)

3

17. The decimal equivalent of 0.0112 is.......

(a)

0.6875

(b)

0.1875

(c)

0.1785

(d)

0.5

18. In binary numbers, the signed positive number has a prefix?

(a)

+

(b)

0

(c)

1

(d)

-

19. The 4 bit binary equivalent of -5 is......

(a)

1101

(b)

0101

(c)

1100

(d)

-101

20. Which complement performs the logical negation on each individual bit?

(a)

Signed

(b)

Unsigned

(c)

2's

(d)

1's