CAT module 1.1 (its all about ICT)

ICT

Information and Communication Technology

Computers

Takes input,process it , produce output

Powerful computers

The speed and performance of the CPU

the amount and type of storage it has

the size of the memory(so that more programs and data can

be processed at the same time)

types of graphics card

servers

computers that provide services or resources to other computers(clients) that are linked in the network

Protecting Information

back up devices

password procted or encrypt the files

donnot store on portable flash drives as they could get lost

hardware theft and protection

use devices such as cable locks to anchor the equipment onto a table or a wall

use lockable cabinets

use motion sensors

UPS(uninterruptible power supply)

used to protect a computer against power surges and spikes, it is charged continuously and will provide power to the computer as the main power fails so you dont lose your work

laptops and notesbooks

use smaller parts for lower power consumption

run on battery power

power settings used to manage power

built in wifi connectivity

portable

tablets

ideal for quick small scale computing

OS designed for mobile devices

longer battery life than laptops

built in wifi and cellular connectivity

portable

phablets

smartphones with screens bigger than 5 inches

performs funtions of a tablet , can make phone calls

portable

smartphones

combines features and technologies of many separate devices(convergence)

touch screen for typed input

mobile OS , ios or andriod

built in wifi and cellular connectiviy

client

a computer that uses the services and resourcse from servers

not as powerful as the server

portable computers

Laptops

tablets

phablets

smartphones

not portable

servers

desktops