Computer fundamental MCQ Questions and answers- Technical Aptitude

81

The binary equivalent of the Octal number 13.54 is

A) 1011.1011 B) 1101.111 C) 1001.111 D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option A

Solution:

Octal is represented in 3 places.
1 = 001.
3 = 011.
5 = 101.
4 = 100.
So 13.54 = 001011.101100 which can be written as 1011.1011.

82

What process prepares the magnetic surface of a disk by creating concentric circles, called tracks, around the disk? (Each track is further divided into pic-shaped sections called sectors.)

A) Tracking B) Formatting C) Copying D) Sectioning E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

The process of dividing the disk into tracks and sectors is called formatting. In computer disk storage, a sector is a subdivision of a track on a magnetic disk or optical disc.

83

What does that acronym VGA stand for?

A) Extended Graphics Adapter B) Enhanced Graphics Array C) Video Graphics Array D) Color Graphics Array E) Video Graphics Adapter

Discuss

Answer & Solution

Answer: Option C

Solution:

VGA : A Video Graphics Array (VGA) connector is a three-row 15-pin DE-15 connector. The 15-pin VGA connector was provided on many video cards, computer monitors, laptop computers, projectors, and high definition television sets.

84

Which part of the diskette should never be touched?

A) Hub B) Centre C) Oval slot D) Corner E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

The diskette should never be touched an Oval slot. A diskette is a random access, removable data storage medium that can be used with personal computers. The term usually refers to the magnetic medium housed in a rigid plastic cartridge measuring 3.5 inches square and about 2 millimeters thick.

85

The storage locations in the internal storage of a CPU are called

A) contents B) addresses C) locations D) mask E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

The storage locations in the internal storage of a CPU are called Addresses. Primary storage, often referred to simply as memory, is the only one directly accessible to the CPU.

86

Which is used to provide the sight information to the right person at the right time for proper decision making?

A) DBMS B) MIS C) ISO D) PSO E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

A management information system is an information system used for decision-making, and for the coordination, control, analysis, and visualization of information in an organization.

87

Most disk drives have a single read/ write head for each disk surface. What is the advantage of suing multiple heads on each movable access arm?

A) Reduced seek time B) Less latency time C) Reduced search time D) Less disk speed E) None of the above

Discuss

Answer & Solution

Answer: Option A

Solution:

The advantage of suing multiple heads on each movable access arm in reduced seek time. Seek time is the time required to move the disk arm to the required track. Rotational delay or latency is the time it takes for the beginning of the required sector to reach the head. Sum of seek time (if any) and latency is the access time.

88

One of the main feature that distinguish microprocessors from microcomputers is

A) words are usually larger in microprocessors B) words are shorter in microprocessors C) microprocessor does not contain I/O devices D) exactly the same as the machine cycle time E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

One of the main feature that distinguish microprocessors from microcomputers is microprocessor does not contain I/O devices. The microprocessor gives a computer the ability to calculate, sort data and perform logical comparisons. The key distinguishing feature of a microprocessor is its integrated nature the way it combines several different circuits into a single package.

89

Which type of display is the latest to be used for portable computer?

A) LED display B) LCD display C) Plasma display D) Electroluminescent display E) None of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

Electroluminescent display is type of display is the latest to be used for portable computer. Electroluminescent Displays (ELDs) are a type of Flat panel display created by sandwiching a layer of electroluminescent material such as GaAs between two layers of conductors.

90

Which of the following is not true of future computers?

A) increased use of CAD/CAM techniques B) faster turnaround time C) developments in artificial intelligence systems D) development of products more suitable for human use E) All of the above are true

Discuss

Answer & Solution

Answer: Option E

Solution:

It is the use of computers to interactively design products and prepare engineering documentation. Increased use of CAD/CAM techniques, faster turnaround time, developments in artificial intelligence systems, development of products more suitable for human use.