input, output and storage devices

COMPUTER IN EDUCATIONGE115

REVIEW ABOUT1.INPUT

2.OUTPUT3. STORAGE DEVICES

COMPUTER WORKING FLOWInput Process Output

Storage

Primary Storage Secondary Storage

-RAM-ROM-EPROM

-DVD-Hard Disk-USB Flash Drive- yada, yada, yada

INPUTAny hardware component that allow you to enter data and instruction into a computer.Each component has it own usageE.g. :

keyboard mouse

digital camera

microphone

scanner

OUTPUTAny hardware component that convey information to one or more people.Each component also has it own usageE.g. :

monitor plotterprinter

projector speakers portable media player

STORAGE DEVICES

Holds data, instruction and information for future use.Holds all these permanently.Can be divided into 1. Primary storage 2. Secondary storage

Primary StorageHas 3 main part

i ) RAM ( Random Access Memory)ii ) ROM ( Read-Only Memory )iii ) EPROM

ROM EPROMRAM

Secondary Storage

floppy disk hard disk memory cards

USB flash drive DVD CD

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PAYING ATTENTION

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