COMPUTER HARDWARES

INPUT DEVICES, OUTPUT DEVICES AND STORAGE MEDIA

PARTS OF A COMPUTER SYSTEM

33

2211 Monitor

CPU

Speakers

33

OBJECTIVES

To be able to identify and state the functions of:Input devicesOutput devicesStorage media

INTRODUCTION

Input device?An input device is a piece of

hardware that is used to enter data into a computer.

Input : Enter data

Input : Enter data

INTRODUCTION

Output device? piece of hardware that is use to get

information OUT of a computer

Output : Produce results /

data

Output : Produce results /

data

INTRODUCTION

Storage device? A device used for storing information/data.

Storage : keep / save

data

Storage : keep / save

data

INPUT DEVICES

Keyboard

Mouse

Scanner

JoystickInput

devicesInput

devices

Keyboard

a set of alphanumeric and command keys used to input information to a computer

Mouse and Joystick act as a pointing device controlling device

Scanner a device that scans images, printed text,

handwriting, or an object, and converts it to a

digital image.

OUTPUT DEVICES

Output devicesOutput devices

Printer

Monitor

Plotter

Projector

PRINTER

a printer is a device that accepts text and graphic output from a computer and transfers the information to paper.

MONITOR

A display screen used to present information from a computer

PLOTTER

Plotters are a specialist type of printer which is able to draw high quality images on very large pieces of paper, for example 3 foot wide by 10 foot long.

PRINTER VS PLOTTER

Printers

Plotters

STORAGE DEVICES

storage devicesstorage devices

Floppy disks

Hard disk

A zip disk

Pen drive

STORAGE DEVICES – KEEP DATA

Storage media

Capacity Ease of use

Floppy disk 1.44mb ★

Hard disk 40gb ★★★★

Pendrive 2gb to 16gb ★★★★

CD or DVD 700mb / 4.7gb ★★★

EXERCISE

Sort these devices into the correct column. * scanner * printer *keyboard * mouse *

monitor * joystick * speakers

Input devices Output devices

SUMMARY

Always remember:Input device is a device that used to

enter data

Output device is a device which capable of representing information from a computer

Storage media is a device that stores / keep data

RESEARCH – GOOGLE, SEARCH THE FOLLOWING DEVICES:

Input devices?Output devices?Touchscreen

Digital camera

Projector

END LESSON