Latest Computers General Knowledge(GK) Questions and answers

1 .

A code which uses more bits for each character then what is necessary is known as

A)

Gray code

B)

Mnemonics

C)

Hollerith code

D)

Redundant code

Correct Answer : Redundant code

A code which uses more bits for each character then what is necessary is known as Redundant code.

In computer programming, redundant code is source code or compiled code in a computer program that is unnecessary, such as: recomputing a value that has previously been calculated and is still available, code that is never executed (known as unreachable code), code which is executed but has no external effect. A NOP instruction might be considered to be redundant code that has been explicitly inserted to pad out the instruction stream or introduce a time delay.

An error-correcting code (ECC) or forward error correction (FEC) code is a process of adding redundant data, or parity data, to a message, such that it can be recovered by a receiver even when a number of errors (up to the capability of the code being used) were introduced, either during the process of transmission,etc,..

2 .

Who built the world's first electronic calculator using telephone relays, light bulbs and batteries?

A)

George Stibits

B)

Konard Zuse

C)

Howard H. Aliken

D)

Claude Shannon

Correct Answer : George Stibits

In November 1937, George Stibitz, then working at Bell Labs (1930-1941), completed a relay-based calculator he later dubbed the "Model K" (for "kitchen table", on which he had assembled it), which calculated using binary addition.

3 .

The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in Electronic Data Processing system is called

A)

BCD

B)

EBCDII

C)

ASCII

D)

None of the above

Correct Answer : ASCII

ASCII is the traditional name for the encoding system; the Internet Assigned Numbers Authority (IANA) prefers the updated name US-ASCII, which clarifies that this system was developed in the US and based on the typographical symbols predominantly in use there.

4 .

The first machine to successfully perform a long series of arithmetic and logical operations was

A)

Analytic engine

B)

ENIAC

C)

UNIVAC-I

D)

Mark I

Correct Answer : Mark I

Conceived by Harvard physics professor Howard Aiken, and designed and built by IBM, the Harvard Mark 1 is a room-sized, relay-based calculator. The machine had a fifty-foot long camshaft running the length of machine that synchronized the machine's thousands of component parts and used 3,500 relays.

5 .

A menu-driven operating system is one which allows you to pick up from the menu of choices it displays on the screen. What is the name given to the images which are used in such image oriented menus?

A)

Figure

B)

Icon

C)

Symbol

D)

None of the above

Correct Answer : Icon

A menu-driven operating system is one which allows you to pick up from the menu of choices it displays on the screen. Icon is the name given to the images which are used in such image oriented menus.

Menu Driven Interface. This type of interface lets you interact with a computer or device by working your way through a series of screens or menus. Think about your iPod or mobile phone, they both use a menu driven interface. You are presented with a menu, you make a choice and then the next menu appears on the screen.

In computing, an icon is a pictogram or ideogram displayed on a computer screen in order to help the user navigate a computer system. The icon itself is a quickly comprehensible symbol of a software tool, function, or a data file, accessible on the system and is more like a traffic sign than a detailed illustration of the actual entity it represents. It can serve as an electronic hyperlink or file shortcut to access the program or data. The user can activate an icon using a mouse, pointer, finger, or recently voice commands.

6 .

Where are silicon chips manufactured in India?

A)

U P

B)

Punjab

C)

Chandigarh

D)

Tamil Nadu

Correct Answer : Chandigarh

India has two fabs — SITAR, a unit of the Defence Research and Development Organisation (DRDO) in Bengaluru and a semiconductor laboratory in Chandigarh, which build silicon chips for strategic purposes like defence and space and not for commercial use.

7 .

The processing capability of a microcomputer can be enhanced with the help of

A)

expansion cards

B)

secondary memory

C)

buffer memory

D)

addition processor

Correct Answer : expansion cards

In computing, the expansion card, expansion board, adapter card or accessory card is a printed circuit board that can be inserted into an electrical connector, or expansion slot, on a computer motherboard, backplane or riser card to add functionality to a computer system via the expansion bus.

8 .

Program execution time would be minimum if the programs are written in

A)

High level language

B)

Assembly language

C)

Machine Language

D)

None of the above

Correct Answer : Machine Language

9 .

Computer scientists are exploring the possibility of culturing bacteria to create living chips which have digital electronic properties. What are these chips called?

A)

natural chips

B)

neural chips

C)

bacterial chips

D)

biochips

Correct Answer : biochips

A biochip is much like a computer chip but instead of performing a multitude of mathematical operations per second, it performs biological reactions such as decoding genes and finding contaminations in a few seconds.

10 .

The data processing job expected to further decrease in the 1996s is that of

A)

Programmer

B)

Keypuncher

C)

Computer operator

D)

Data entry clerk

Correct Answer : Keypuncher