WEEK 3 DAY 3&4 TLE - COMPUTER SYSTEM SERVICING

Q1 Week 3 Day 3 & 4 TLE - COMPUTER SYSTEM SERVICING

INPUT, OUTPUT AND STORAGE DEVICES​

Objectives:

1. Enumerate the different input, output and storage devices

2. Distinguish the difference between input, output and storage devices

3. Show understanding to the function of each computer devices​

​What are the input and output devices of a computer?

​The devices attached to a personal computer can be classified into two -- the input and output devices.

​

Input Device is composed of a device that accepts data and instructions from the user or from another computer system.

​

While, Output Device is any piece of computer hardware that displays results after the computer has processed the input data that has been

Multiple Choice

A device that accepts data and instructions from the user or from another computer system

• Input Device

• Output Device

Multiple Choice

A device that displays results after the computer has processed the input data that has been entered

• Input Device

• Output Device

​INPUT DEVICES

​a. Keyboard is the first input device developed for the computer and modeled from the typewriter keys. It allows one to input letters, numbers and other symbols in a computer.

​

b. Mouse is used to control the cursor or pointer on the

screen and to give commands to the computer.

​

c. A graphics tablet is used for sketching new images or tracing old one using special stylus

​INPUT DEVICES

​d. Touch screen is a display screen that is sensitive to the

​ touch of a finger or stylus. It became wildly popular for

smart phones, tablets and laptops.

​

e. Light pen is a light-sensitive stylus wired to a video terminal used to draw pictures or to select menu options.

​

f. Scanner is a light sensitive device that helps copy images and documents, and converts it into digital form that can be processed and stored by the computer

​INPUT DEVICES

g. Microphone is used as an audio-input device, and its function is to enter or record sound into computer.

h.    Web camera is a video camera that feeds its image to a computer.

i.     A joystick looks like car’s stick shift. It controls objects on screen.

Multiple Choice

Touch Screen is a light sensitive device that helps copy images and documents, and converts it into digital form that can be processed and stored by the computer.

• True

• False

Multiple Choice

A display screen that is sensitive to the touch of a finger or stylus. This became wildly popular for smart phones and tablets.

• Touch Screen

• Keypad

• Typewriter

• Keyboard

OUTPUT DEVICES

a.    Monitor displays information in visual form using text and graphics.
b.    Projector is a compact, high resolution and full color that is capable of projecting text, images, video and audio content.
c.  Smart board is a type of display screen that has a touch sensitive transparent panel covering the screen, which is like a touch screen.

OUTPUT DEVICES

​

d.    Printer is a device that prints documents or images on a paper.

e.    A speaker is a device that produces computer output in form of sound

Multiple Choice

A Monitor is a device that produces computer output in form of sound

• TRUE

• FALSE

​STORAGE DEVICES

​

a.    Floppy disk known as diskette is a portable magnetic storage device that can store up to 1.44 MB of data which is equivalent to around 300 pages of A4 text

b.    Optical disc is a form of removable storage which includes compact disc (CD), digital versatile disc (DVD) and blu-ray disc that uses a laser to read and write data on optical media.

c.     Hard disk is the main and largest data storage device in a computer.

​STORAGE DEVICES

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d.    Flash drive also known as thumb drive, jump drive or pen drive is a small, portable flash memory card that plugs into a computer USB port and functions as a portable hard drive.

e.    A memory card or flash card is an electronic flash memory data storage used for storing digital information commonly found in digital cameras, mobile phones and tablets.

f.     Zip drive is a small disk drive used primarily for backing up and archiving computer files.

Multiple Choice

It is also known as thumb drive, jump drive or pen drive

• Flash drive

• Optical Disc

• Memory Card

Multiple Choice

Hard disk is the main and largest data storage device in a computer.

• TRUE

• FALSE

Multiple Choice

A memory card or flash card is an electronic flash memory data storage used for storing digital information commonly found in digital cameras, mobile phones and tablets.

• TRUE

• FALSE