hardware

hardware is the physical components of the computer.

input is the data and instructions given to the computer (instructions can be given to computer through programs, commands and responses)

instructions can be given to computer through programs.

Programs are a set of instructions loaded into the memory of the computer when you run the program.

programs can respond to commands given by user

you can respond to commands given by programs.

The mouse

is a pointing device

how it works:

• light is reflected on to the surface mouse is on the light sensors sense how light is reflected and can now dictate speed and direction of mouse the movement of the mouse moves the pointer.

CONNECTING DEVICES

There are ports on a computer. ports are used to connect different devices to your computer.

the most common port is the USB port (because it is evolving and becoming faster)

you can use a USB hub for more USB ports.

plug and play

• is a series of technology where the operating system automatically detects and configures a device that has been plugged in and can be used immediately

WIRELESS DEVICES

use short range radio waves which is Bluetooth to communicate with the computer.