Latest Computers General Knowledge(GK) Questions and answers

1 .

Which of the following are likely to jam the read/write head of a disk pack?

A)

Dust

B)

Smoke particle

C)

Finger print smudge

D)

All of the above

Correct Answer : All of the above

2 .

A single bus structure is primarily found in

A)

Super computers

B)

Main frames

C)

Mini-and micro-computers

D)

High performance machines

Correct Answer : Mini-and micro-computers

A single bus structure is primarily found in Mini- and micro computers.

A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).[2] It includes a microprocessor, memory, and minimal input/output (I/O) circuitry mounted on a single printed circuit board.[3] Microcomputers became popular in the 1970s and 1980s with the advent of increasingly powerful microprocessors. The predecessors to these computers, mainframes and minicomputers, were comparatively much larger and more expensive (though indeed present-day mainframes such as the IBM System z machines use one or more custom microprocessors as their CPUs).

Minicomputers (midrange computers) Minicomputers (colloquially, minis) are a class of multi-user computers that lie in the middle range of the computing spectrum, in between the smallest mainframe computers and the largest single-user systems (microcomputers or personal computers).

3 .

A printed document reader which scans the characters and then encodes them in a computer-compatible code for direct transmission to the computer is called

A)

Kurzweil Data Entry Machine (KDEM)

B)

Optical character reader

C)

Laser scanner

D)

MICR

Correct Answer : Kurzweil Data Entry Machine (KDEM)

Kurzweil Data Entry Machine (KDEM) as an input device for literary and linguistic computing It is based on over five years' experience of providing an optical reading service for academic users The KDEM is an ‘intelligent’ optical character reader in that it is able to ‘learn’ the shapes of the letters in a text It can read proportionately spaced (typeset) text as well as uniformly spaced material (typescript) and can recognise different fonts as well as superscripts, subscripts and underlining Any script in which the letters do not join can be read The accuracy and speed of the reading depend very much on how well the KDEM has been trained Speeds of up to 30 pages per hour can be obtained on a good text with the aid of a built-in lexicon of about 33,000 English words The most suitable types of text are solid blocks or pages in a single typeface which have been printed on relatively smooth paper Dictionaries and bibliographies can be read but are more difficult because of frequent changes of typeface Newspapers and computer printout are unsuitable...

4 .

What type of computer programming is used for airplane ticket reservation system?

A)

Multi programming

B)

Real time programming

C)

Batch programming

D)

None of the above

Correct Answer : Real time programming

Real time programming type of computer programming is used for airplane ticket reservation system.

A real-time system is one where it has to respond within certain time limits, for example, the avionics of a plane, or the control system of an industrial process.

If the system does not respond in a timely manner, it's potentially dangerous.If an online railway reservation system is slow to respond, that's annoying; if a system controlling a train is slow to respond, that's bad.

In computer science, real-time computing (RTC), or reactive computing describes hardware and software systems subject to a "real-time constraint", for example from event to system response. Real-time programs must guarantee response within specified time constraints, often referred to as "deadlines".

5 .

Who coordinates the sequencing of events within the central processor of a computer?

A)

Control unit

B)

Logic unit

C)

Arithmetic unit

D)

Register

Correct Answer : Control unit

The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to the instructions that have been sent to the processor.

6 .

What technology is used for flat panel displays?

A)

VLSI

B)

Direct view storage tube

C)

RBG monitor

D)

Solid state

Correct Answer : Solid state

7 .

When was the X Window System born?

A)

1973

B)

1979

C)

1984

D)

1987

Correct Answer : 1984

The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X originated at the Massachusetts Institute of Technology (MIT) in 1984.

8 .

Different components on the motherboard of a PC processor unit are linked together by sets of parallel electrical conducting lines. What are these lines called?

A)

Buses

B)

Conductors

C)

Connectively

D)

Connectors

Correct Answer : Buses

9 .

A type of line printer that uses an embossed steel band to form the letters printed on the paper is

A)

Laser printer

B)

Band printer

C)

Golf ball printer

D)

Dot-matrix printer

Correct Answer : Band printer

Band Printer : A line printer that uses a metal band, or loop, of type characters as its printing mechanism. The band contains a fixed set of embossed characters that can only be changed by replacing the band. The band spins horizontally around a set of hammers, one for each print column.

10 .

When did Hewlett-Packard Inc. Introduce its first HP-110 laptop computer?

A)

1980

B)

1984

C)

1992

D)

1997

Correct Answer : 1984

The Hewlett-Packard HP 110 (aka HP Portable) was an MS-DOS compatible portable computer released in 1984. It used a Harris 80C86 running at 5.33 MHz with 272 KB of RAM. It had an 80 character by 16 line monochrome (480 x 128 pixel) liquid crystal display, ran MS-DOS 2.11 in ROM, and had the application programs MemoMaker, Terminal Emulator and Lotus 1-2-3 in ROM.