Computer fundamental MCQ Questions and answers- Technical Aptitude

81

Output hardware is often categorized according to whether it:

A) is expensive B) requires a large amount of electricity to work C) produces hardcopy or softcopy D) can fit on a desktop E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

Output hardware is often categorized according to whether it produces hardcopy or softcopy. Printers are the most used use to produce a hardcopy output which is printed paper. When a document is created on a computer, it is typically saved as a file on the computer's hard drive. This is sometimes referred to as a softcopy.

82

The original ASCII code used _____ bits of each byte, reserving that last bit for error checking.

A) 5 B) 6 C) 7 D) 8 E) 4

Discuss

Answer & Solution

Answer: Option C

Solution:

The original ASCII was a 7 bit character set (128 possible characters) with no accented letters. This was used in teletype machines. (The eighth bit was originally used to check parity - a way to look for errors.)

83

Which of the following terms is the most closely related to main memory?

A) Non-volatile B) Permanent C) Control Unit D) Temporary E) None of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

Temporary terms is the most closely related to main memory.
Random access memory (RAM) is used as the working memory of a computer system. It stores input data, intermediate results, programs, and other information temporarily. It is usually volatile, which means that all data will be lost when the power is turned off.

84

The computer industry uses prefixes of Greek origin to measure large amounts of data. Which term describes 1024 bytes.

A) Kilobyte B) Megabyte C) Gigabyte D) Terabyte E) None of the above

Discuss

Answer & Solution

Answer: Option A

Solution:

After all, "kilo" means 1000. In most cases, this approximation is fine for determining how much space a file takes up or how much disk space you have. But there are really 1024 bytes in a kilobyte.

85

Which kind of storage device can be carried around?

A) Floppy disk B) Hard disk C) System cabinet D) Hard disk drive E) Floppy disk drive

Discuss

Answer & Solution

Answer: Option A

Solution:

A floppy disk is a magnetic storage medium for computer systems. It came in several different sizes, including the 8 inch and the 3.5 inch, and is composed of a thin and flexible magnetic disk sealed in a square plastic carrier.

86

One nibble is equal to

A) 4 bits B) 8 bits C) 6 bits D) 16 bits E) None of the above

Discuss

Answer & Solution

Answer: Option A

Solution:

A nibble has 16 potential values thanks to its four bits, which is the same as one hexadecimal digit. As a result, a nibble is also known as a hex digit. Because of the four bits that make up each nibble, nibbles are also referred to as “quad bits” in data transfers.
One nibble is half byte.
1 byte = 8 bits.
Hence, $$\frac{1}{2}$$ byte (one nibble) = 4 bits.

87

In which area of the primary storage section are the intermediate processing results held temporarily?

A) Input storage area B) Program storage area C) Output storage area D) Working storage space E) None of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

Memory, usually referred to as Random Access Memory (RAM), is the place where an application loads its data during processing, while a hard disk drive (HDD) is usually the place where data is stored for long or short term retention.

88

What is required when more than one person uses a central computer at the same time?

A) Light pen B) Mouse C) Digitizer D) Terminal E) None of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

With the help of terminal more than one personal uses a central computer at the same time. The Terminal is in fact based on a true story. It may sound hard to believe, but the film is indeed about Mehran Karimi Nasseri, an Iranian refugee who lived in the departure lounge of Paris's Charles de Gaulle Airport.