Latest Computers General Knowledge(GK) Questions and answers

1 .

Hard disk drives are considered.......storage.

A)

Flash

B)

Non-Volatile

C)

Non-permanent

D)

Temporary

Correct Answer : Option (B) - Non-Volatile

A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data even when powered off. Modern HDDs are typically in the form of a small rectangular box.

Introduced by IBM in 1956,HDDs were the dominant secondary storage device for general-purpose computers beginning in the early 1960s. HDDs maintained this position into the modern era of servers and personal computers, though personal computing devices produced in large volume, like cell phones and tablets, rely on flash memory storage devices.

2 .

The most common input devices are

A)

Scanner, monitor

B)

Digital camera, speaker

C)

Keyboard, Mouse

D)

Microphone, Printer

Correct Answer : Option (C) - Keyboard, Mouse

The most common input devices are the Keyboard and Mouse. Portable keyboard, wireless mouse, and iPhone. There are hundreds of other input devices, like microphones to capture sound waves, scanners to capture image data, and virtual reality devices to capture our body movements.

3 .

The ...........Key and the .......key can be used in combination with other keys to perform shortcuts and special tasks.

A)

Function, toggle

B)

Delete, insert

C)

Caps lock, num lock

D)

Ctrl, Alt

Correct Answer : Option (D) - Ctrl, Alt

The Ctrl Key and the Alt key can be used in combination with other keys (Esc) to perform shortcuts and special tasks.
* Ctrl+Alt+Esc = Task Manger

4 .

A joystick allows movements is which angle.

A)

360Â°

B)

180Â°

C)

90Â°

D)

30Â°

Correct Answer : Option (A) - 360Â°

* A joystick allows movements in 360°.

* A joystick is also known as the control column.

* Joysticks are often used to control video games, Joysticks are also used for controlling machines such as cranes, trucks, underwater unmanned vehicles, wheelchairs, surveillance cameras, and zero turning radius lawn mowers.

5 .

Which of the following is an example of storage devices ?

A)

Magnetic disks

B)

Tapes

C)

DVDs

D)

All of the above

Correct Answer : Option (D) - All of the above

Hard Drives, CD-ROM and DVD-ROM drives, floppy disk drives, and tape drives are all examples of storage devices. ... It can read data from the storage medium but you can NOT change the data or save any new data on it. A CD-ROM is an example of this. Many music CD's that you buy are this way.

A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots and sectors. Hard disks, zip disks and floppy disks are common examples of magnetic disks.

Some other examples of secondary storage technologies are flash memory (e.g. USB flash drives or keys), floppy disks, magnetic tape, paper tape, punched cards, standalone RAM disks, and Iomega Zip drives.

Examples are Hard drives, USB flash drives, DC-RW, and DVD-RAM drives. ... A storage device that uses laser beams to read the information stored on the reflective surface of a disc. Popular types of optical storage devices are CD-ROM and DVD-ROM drives.

6 .

Mouse technique used for access in properties of any object is

A)

Left clicking

B)

Right clicking

C)

Dragging

D)

Dropping

Correct Answer : Option (B) - Right clicking

7 .

To go to the beginning of a text line, Press

A)

Enter

B)

Page up

C)

Page down

D)

Home

Correct Answer : Option (D) - Home

To move to the beginning of a line of text, press the Home key.

8 .

Spacebar is used for

A)

moving next line

B)

deleting space

C)

giving space

D)

All of the above

Correct Answer : Option (C) - giving space

The wide key at the bottom of a computer keyboard or typewriter that is used to make a giving space from letter to letter or characters.

9 .

The ......... key will launch the Start button.

A)

Shift

B)

Esc

C)

Ctrl

D)

Window

Correct Answer : Option (D) - Window

The Windows logo key (also known as Windows key, start key, logo key, flag key, super key, command key or flag) is a keyboard key which was originally introduced on the Microsoft Natural keyboard in 1994. This key became a standard key on PC keyboards. Tapping this key invokes the operating system's start menu

10 .

A device that makes copies and reproduces text and images is called

A)

scanner

B)

printer

C)

memory

D)

CPU

Correct Answer : Option (A) - scanner