FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

TYPES OF COMPUTER SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following peripherals is used to optically convert printed information?
A
Printer
B
Monitor
C
Scanner
D
Touchpad
Explanation: 

Detailed explanation-1: -The correct answer is Scanner. Image scanner also called a scanner scans images, handwriting, printed text or objects and converts them into a digital image.

Detailed explanation-2: -A scanner is an input device that captures documents such as photographs and text. There are basically three types of scanners: Drum Scanner : In a Drum scanner, the light from the object that is to be scanned is split into separate red, blue and green beams optically making the image precise.

Detailed explanation-3: -An output device is any piece of computer hardware equipment that converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units i.e. a Monitor, Printer graphic Output devices, Plotters, Speakers etc.

Detailed explanation-4: -Computer devices such as mice, printers, scanners and speakers are known as peripheral hardware. These peripherals are further split into two categories, input devices and output devices.

Detailed explanation-5: -An optical scanner is an input device using light beams to scan and digitally convert images, codes, text or objects as two-dimensional (2D) digital files and sends them to computers and fax machines.

There is 1 question to complete.