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Fundamentals of Computer

Description: To Increase and Enhance your Skills by Learning Basics of Computers to Crack Multiple Competitive Exams
Number of Questions: 25
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Tags: Computer Basic Fundamentals Computer Fundamentals Fundamental of Computers Basics of Computers Basic Fundamentals Hardware and Software Number System Number System and Its Application
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How many different characters can be coded by EBCDIC?

  1. 816

  2. 32

  3. 64

  4. 256


Correct Option: D

Which of the following is not an octal number?

  1. 49

  2. 64

  3. 14

  4. 134


Correct Option: A

A bit represents a

  1. decimal digit

  2. octal digit

  3. binary digit

  4. hexadecimal digit


Correct Option: C

How many different characters are allowed by ASCII - 7?

  1. 32

  2. 64

  3. 128

  4. 257


Correct Option: C

32 kilobyte is capable of storing

  1. 32000 bytes of characters

  2. 32768 bytes of characters

  3. 32906 bytes of characters

  4. 32888 bytes of characters


Correct Option: B

What is hexadecimal code for word DEVICE in ASCII-7

  1. 444556494345

  2. 443673822243

  3. 452338234954

  4. None of these


Correct Option: A

When the decimal number 16 is converted to binary number, how many binary digits are needed?

  1. 4

  2. 3

  3. 5

  4. 7


Correct Option: C

The unit of speed for Super Computer is

  1. KFLOPS

  2. MFLOPS

  3. GFLOPS

  4. All of these


Correct Option: C

Number 84 in BCD is

  1. 12

  2. 22

  3. 1101

  4. 11100


Correct Option: A

The maximum count which a 6-bit binary word can represent is

  1. 36

  2. 64

  3. 63

  4. 65


Correct Option: C

The ASCII code in hexadecimal for number 5 is

  1. 5

  2. 25

  3. 35

  4. 65


Correct Option: C

How many fractional digits 2-48 will have?

  1. 24

  2. 47

  3. 49

  4. 48


Correct Option: D

Which number system is not a positional notational system?

  1. ROMAN

  2. Binary

  3. Decimal

  4. Hexadecimal


Correct Option: A

What is the value of? in the following question? 2B.C4 base 16 = ? base 10

  1. 42.76532

  2. 43.765652

  3. 43.98762

  4. 43.0678


Correct Option: B

What is the value of? in the following question? 545 base 6 =? base 4

  1. 2101

  2. 3101

  3. 3102

  4. 4101


Correct Option: B

Using octal notation, what is BCD coding for word COMPUTER?

  1. 6284445678453455

  2. 6344546783423455

  3. 6576864356777777

  4. 6346444724236551


Correct Option: D

The ASCII & EBCDIC differ in

  1. their efficiency in storing data

  2. the random and sequential access method

  3. the number of bytes used to store character

  4. their collating sequences


Correct Option: D

The ASCII Code is

  1. a numeric code

  2. same as BCD code

  3. an alphanumeric code

  4. seldom used


Correct Option: C

The octal representation of an integer is 3428. If this integer were to be treated as an eight bit integer in an 8085 based computer, its decimal equivalent would have been

  1. 226

    • 98
  2. 76

    • 30

Correct Option: A

if (123)x = (x3)y, the number of possible values of x is

  1. 4

  2. 1

  3. 3

  4. 2


Correct Option: D

Where are chips manufactured in India?

  1. Chandigarh

  2. UP

  3. Tamilnadu

  4. Karnataka


Correct Option: A

The number of bytes of memory occupied by an assembler, which is located on the memory map of a microcomputer between addresses F00H and FFFH is

  1. (1024)10

  2. (2048)10

  3. (4096)10

  4. (8192)10


Correct Option: C

1 nibble =? bits

  1. 3

  2. 4

  3. 5

  4. 6


Correct Option: B

Given √(224) r = 13r, the value of radix r is

  1. 10

  2. 8

  3. 5

  4. 6


Correct Option: C

What is the value of? in the following question? (1AF) base 16 =? base 10

  1. 221

  2. 129

  3. 331

  4. 432


Correct Option: D
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