Computer & IT

note!Answer: B) Daisy wheel printer
Daisy wheel printers are impact printers that strike the paper, making them very noisy compared with laser or inkjet printers.

note!Answer: C) Screen resolution
These are common display resolutions, given as width by height in pixels.

note!Answer: B) Data
Raw, unprocessed facts and figures are called data; processing them yields information.

note!Answer: A) Information
When data is processed and refined into a meaningful form, it becomes information.

note!Answer: D) Communication of data
Combining computing and communication technologies enables the communication of data across networks.

note!Answer: C) Computing
Data processing involves collecting and manipulating raw data to produce meaningful information. It is often associated with computing, which uses computers to process data.

note!Answer: C) Computer
A computer is an electronic device that accepts input, processes data, and controls processing activities.

note!Answer: B) Secondary memory
Secondary memory such as hard disks stores data and programs permanently, unlike volatile RAM.

note!Answer: C) Hardware
Physical electronic circuits and components that make up a computer are called hardware.

note!Answer: B) Operating system
An operating system is software, while input devices, processors, and secondary storage are hardware.

note!Answer: B) Speaker
A speaker is an output device that produces sound, while keyboard, mouse, and microphone are input devices.

note!Answer: B) Speaker
A speaker outputs sound from the computer, so it is an output device.

note!Answer: B) RAM
RAM is a memory component, not an output device; monitor, speaker, and printer output information.

note!Answer: D) CD-ROM
CD-ROM is a removable secondary storage medium, while RAM, ROM, and CPU are primary components.

note!Answer: C) ROM
ROM is primary memory built into the computer, whereas hard disks, CD-ROM, and tape drives are secondary storage.

note!Answer: A) Monitor
A monitor is an external peripheral connected to the computer, while buses and drives are internal components.

note!Answer: C) CD-ROM drive
Cables, ports, and buses connect components together, whereas a CD-ROM drive is a device, not a connector.

note!Answer: D) Input
Input is any data or instructions entered into the computer for processing.

note!Answer: C) Keyboard
The keyboard is the primary input device for typing text.

note!Answer: B) QWERTY
QWERTY is the standard keyboard layout, named after the first six letters on the top row.