basics of hardware & software set 1 Detailed Explanation And More Example

MOST IMPORTANT computer mcq - 6 EXERCISES

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The following question based on basics of hardware & software topic of computer mcq

Questions : How many address lines are needed to address each memory location in a 2048 x 4 memory chip?

(a) 10

(b) 12

(c) 8

(d) 11

e) None of these

The correct answers to the above question in:

Answer: (d)

Notes: 11 address lines are needed to address each machine location in a 2048 X 4 memory chip.

It means a memory of 2048 words, where each word is 4 bits. So to address 2048 (or 2K, where K means 2^10 or 1024), you need 11 bits, so 11 address lines. To express in very easy terms, without any bus-multiplexing, the number of bits required to address memory is the number of lines (address or data) required to access that memory.

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Read more basic hardware software Based Computer Questions and Answers

Question : 1

Multiplexer means.................

a) One in to many

b) All of these

c) many in to many

d) many in to one

e) None of these

Answer: (d)

Question : 2

What are small high speed memory units used for storing temporary results?

a) All of the above

b) Registers

c) Control unit

d) CPUs

e) None of these

Answer: (d)

Question : 3

Which of the Following holds the ROM, CPU, RAM and expansion cards "

a) Hard disk

b) Floppy disk

c) All of the above

d) Mother board

e) None of these

Answer: (d)

Question : 4

Which of the following is not hardware:

a) Magnetic tape

b) Printer

c) Assembler

d) VDU terminal

e) None of these

Answer: (c)

Question : 5

ASCII code is a......... bit code.

a) 1

b) 2

c) 9

d) 8

e) 7

Answer: (e)

Notes: ASCII is a 7-bit code, representing 128 different characters. When an ASCII character is stored in a byte the most significant bit is always zero.

Question : 6

What input device can be used for marking

a) Optical mark reader

b) Bar code reader

c) Mouse a multiple choice test?

d) All of the above

e) None of these

Answer: (a)

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