Latest Computers General Knowledge(GK) Questions and answers

1 .

Laser printers belong to

A)

band printer

B)

page printer

C)

dot matrix printer

D)

line printer

Correct Answer : page printer

There are several page printing technologies, for example: Laser printers, in which a laser beam draws the page image on charged drum which collects charged toner and transfers the image to paper. LED printers, which use Light-emitting diodes instead of a laser beam, but are otherwise very similar to laser printers.

2 .

A barcode reader is and example of

A)

storage device

B)

processing device

C)

output device

D)

input device

Correct Answer : input device

A BCR (barcode reader) or scanner, also known as a POS (point of sale) scanner is a hardware input device capable of reading a barcode using a laser. It can also load the details of the product or log information about that product into a database. An example of a barcode reader is a supermarket barcode scanner that reads and logs the price of a product. The picture is an example of a barcode reader from HP.

Today, many smartphones with the proper apps are also capable of scanning and reading barcodes.

3 .

A group of bits that tells the computer to perform a specific operation is known as

A)

accumulator

B)

micro-operation

C)

instruction code

D)

None of the above

Correct Answer : instruction code

A group of bits that tell the computer to perform a specific operation is known as Instruction code.

4 .

........... is when the more power-hungry components, such as the monitor and the hard drive, are put in idle.

A)

Power down

B)

Hibernation

C)

Standby mode

D)

The shutdown procedure

Correct Answer : Standby mode

5 .

Which of the following company developed the microprocessor ?

A)

Intel

B)

IBM

C)

Microsoft

D)

Apple

Correct Answer : Intel

The Intel 4004 was the world's first microprocessor—a complete general-purpose CPU on a single chip. Released in March 1971, and using cutting-edge silicon-gate technology, the 4004 marked the beginning of Intel's rise to global dominance in the processor industry.

6 .

A microprocessor is the brain of the computer and is also called a

A)

macrochip

B)

microchip

C)

macroprocessor

D)

None of the above

Correct Answer : microchip

A microchip (sometimes just called a "chip") is a unit of packaged computer circuitry (usually called an integrated circuit) made for program logic (logic or microprocessor chips) and for computer memory (memory or RAM chips).

Since the chip is the core for the microprocessor to perform main functions, microprocessor is also called "Miccrochip".

7 .

The load instruction is mostly used to designate a transfer from memory to a processor register known as

A)

program counter

B)

instruction register

C)

memory address register

D)

accumulator

Correct Answer : accumulator

8 .

Which is not an integral part of computer ?

A)

CPU

B)

UPS

C)

Mouse

D)

Monitor

Correct Answer : UPS

UPS is not an integral part of computer. It is use for uninterrupted power supply.

9 .

Another name for a logic chip is

A)

PROM

B)

RAM

C)

Microprocessor

D)

Memory

Correct Answer : Microprocessor

A microprocessor, sometimes called a logic chip, is a computer processor on a microchip.

10 .

The system unit

A)

Is the container that houses electronic components

B)

Is a combination of hardware and software

C)

Controls and manipulates data

D)

Coordinates input and output devices

Correct Answer : Is the container that houses electronic components

A system unit is the part of a computer that houses the primary devices that perform operations and produce results for complex calculations. It includes the motherboard, CPU, RAM and other components, as well as the case in which these devices are housed.