Page 73 - DK Children's Encyclopedia
P. 73
Computers SEE ALSO
▸ ▸ Coding p.65
▸ ▸ Codes pp.66—67
Computers are machines that store information and can be ▸ ▸ Communication
programmed to perform tasks. Many show information on p.69
a screen, such as on a mobile phone or a laptop. Others are ▸ ▸ Internet p.138
hidden inside objects to make them work. ▸ ▸ Machines p.150
▸ ▸ Robots p.212
Screen
Words and images are
displayed on the screen.
How computers work USB port
Computers are programmed Work can be saved and
moved between devices on
in code to perform different a tiny hard drive, called a
tasks. This is called software. USB. It is plugged in here.
The programs are stored and
run by the parts, or hardware,
of the computer.
Keyboard
Battery Words typed on
the keyboard
Computers need appear on
electricity to work. The the screen.
battery provides and
stores the electricity.
Processor Motherboard RAM Hard drive
This part performs the This connects everything, so This part stores information, This stores information
calculations that make that different parts of the but only while the computer even when the computer
the computer work. computer can communicate. is switched on. is switched off.
How we use
computers
Computers are found
inside many everyday
objects. Computers let us
program these machines to Industrial robot
perform specific tasks. Traffic lights Video games Computers tell big
Computers control Game consoles are computers machines what to do—
when the lights that let you play games on a often the same thing
change color. television screen. over and over again.
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