Computer fundamental MCQ Questions and answers- Technical Aptitude

11

Which of the following are likely to jam the read/write head of a disk pack?

A) Dust B) Smoke particle C) Finger print smudge D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

They are likely to jam the read/write head of a disk pack and Dust Smoke particle Finger print smudge.

12

Impact printers

A) strike a ribbon against the paper to produce character images B) include ink-jet and thermal devices C) are more expensive than Laser printers D) use optical technology E) None of the above

Discuss

Answer & Solution

Answer: Option A

Solution:

An impact printer is a type of printer that works by direct contact of an ink ribbon with paper. A metal or plastic head strikes the ink ribbon, whereby the ribbon is pressed against the paper and the desired character (letter, digit, dot, line) impression is printed on the sheet.

13

Which of the following is not a practical data-processing approach?

A) batch-sequential B) batch-direct C) immediate-sequential D) immediate-direct E) All of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

Immediate-sequential is not a practical data-processing approach. Process data is called information. The data that is processed is known as information.

14

Bit map terminal

A) support displays containing multiple windows B) requires considerable amount of video RAM C) requires tremendous amount of copying and hence low performance D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

Bit map terminal is a Support displays containing multiple windows, Requires considerable amount of video RAM and Requires tremendous amount of copying and hence low performance. A bit map defines a display space and the color for each pixel or "bit" in the display space.

15

A 32 bit microprocessor has the word length equal to

A) 2 bytes B) 32 bytes C) 4 bytes D) 8 bytes E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

A 32 bit microprocessor has the word length equal to. Data structures containing such different sized words refer to them as WORD (16 bits/2 bytes), DWORD (32 bits/4 bytes) and QWORD (64 bits/8 bytes) respectively.

16

The register which holds the address of the location to or from which data are to be transferred is known as

A) index register B) instruction register C) memory address register D) memory data register E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

In a computer, the memory address register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU, or the address to which data will be sent and stored.

17

In simplex transmission

A) Data format is simple B) Data transmission is one way C) Data can be transmitted to small distances only D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

In Simplex mode, the communication is unidirectional, as on a one-way street. Only one of the two devices on a link can transmit, the other can only receive. The simplex mode can use the entire capacity of the channel to send data in one direction.

18

Each model of a computer has a unique

A) Assembly language B) Machine language C) High level language D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

Machine language : A low-level language that is directly understandable by the computer system. Each model of a computer has a unique machine language.

19

Transistorized computer circuits were introduced in the

A) first generation B) second generation C) thir4 generation D) fourth generation E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

A transistor computer, now often called a second generation computer, is a computer which uses discrete transistors instead of vacuum tubes.

20

Those microcomputers which have the same operating characteristics as the IBM microcomputers are called IBM

A) duplicates B) clones C) copies D) look alikes E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

Those microcomputers which have the same operating characteristics as the IBM microcomputers are called IBM clones. Cloning is a technique scientists use to make exact genetic copies of living things. Genes, cells, tissues, and even whole animals can all be cloned.