Computer fundamental MCQ Questions and answers- Technical Aptitude

11

Which of the following is also known as SOROBAN

A) ENIAC B) Abacus C) EDSAC D) UNIVAC E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

The soroban also known as Abacus, is an abacus developed in Japan. It is derived from the ancient Chinese suanpan, imported to Japan in the 14^th century.

12

A repository for data, usually covering specific topic is

A) Database B) Data requisition C) Databank D) Data collection E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

In telecommunications, computing, and information architecture, a data bank or databank is a repository of information on one or more subjects – a database – that is organized in a way that facilitates local or remote information retrieval and is able to processes a large number of continual queries over a long period.

13

The disadvantage of dynamic RAM over static RAM is

A) higher power consumption B) variable speed C) need to refresh the capacitor charge every once in two milliseconds D) higher bit density E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

The disadvantage of dynamic RAM over static RAM is needed to refresh the capacitor charge every once in two milliseconds.
The advantage of a DRAM is the simplicity of the cell - it only requires a single transistor compared to around six in a typical static RAM, SRAM memory cell.

14

Which of the following is true concerning personal computers?

A) They decrease the demand for mainframe computers B) They have been most successful in the home C) The electronic spreadsheet has been a primary reason for their popularity D) Their future is not so bright owning to the improved cost-performance ratio of minis and mainframes E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

The correct answer is Option C: The electronic spreadsheet has been a primary reason for their popularity

Electronic spreadsheets like VisiCalc and Lotus 1-2-3 were among the first "killer applications" that drove the rapid adoption of personal computers in business environments.

They allowed users to perform complex calculations, automate financial tasks, and manage data in ways that were previously time-consuming or impractical.

This utility and versatility made personal computers indispensable tools in offices and significantly contributed to their widespread use.

Options A and D are incorrect because personal computers did not eliminate the need for mainframes or minis; instead, they complemented them.

Option B is misleading since personal computers have been more influential in business and education sectors than just homes.

Therefore, Option C is the most accurate statement regarding the rise in popularity of personal computers.

15

Which of the following machines are characterised by electronic tube circuitry, delay line, rotating or electrostatic memory.

A) First generation B) Fifth generation C) Third generation D) Second generation E) Fourth generation

Discuss

Answer & Solution

Answer: Option A

Solution:

First generation machines are characterized by electronic tube circuitry, delay line; rotating or electrostatic memory. The ENIAC (Electronic Numerical Integrator and Computer) was the direct forefather of the modern computer because the problems associated with its operation led to the development of the latter.

16

A memory that is capable of determining whether a given datum is contained in one of its addresses is

A) ROM B) PROM C) CAM D) RAM E) None of the above

Discuss

Answer & Solution

Answer: Option C

Solution:

A memory that is capable of determining whether a given datum is contained in one of its addresses is CAM. A projection on a rotating part in machinery, designed to make sliding contact with another part while rotating and impart reciprocal or variable motion to it.

17

The smallest logical data entity is called a data item or data

A) Base B) Field C) Bank D) Collection E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

A field consists of a grouping of characters. A data field represents an attribute (a characteristic or quality) of some entity (object, person, place, or event).

18

Conversion of a hexadecimal number 3D₁₆ to binary number is

A) 111101₂ B) 110011₂ C) 11000110₂ D) 110001₂ E) None of the above

Discuss

Answer & Solution

Answer: Option A

Solution:

Conversion of a hexadecimal number (3D)₁₆ to binary number is (111101)₂.
(3D)₁₆ = (111101)₂
Because 3 = 11
D = 13 (in hexadecimal) = 1101
Hence answer is = (111101)₂

19

Programs prepared by an outside supplier & privided to a user in a machine readable form is known as

A) Utility program B) Canned program C) Application program D) Application software E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

Programs prepared by an outside supplier & provided to a user in a machine readable form is known as canned program. A program which has been written to solve a particular problem, is available to users of a computer system, and is usually fixed in form and capable of little or no modification.

20

An input device that uses switch contacts placed under a plastic pad which may be inscribed with symbols is known as

A) Punched card B) Touch pad C) Punched paper tape D) Magnetic disk E) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

An input device that uses switch contacts placed under a plastic pad which may be inscribed with symbols is known as Touch pad. A track pad, also known as a touchpad or glide pad, is a device that translates the position and motion (left, right, up, and down) of your fingers in order to move the cursor on your screen and interact with websites and applications.