Software

Software or Programs A set of detailed directions telling the

computer exactly what to do, one step at a time.

Can be one line of code or several million lines

Two types of software Operating System Application

Application Software Written for a particular purpose Could be

Word Processing Spreadsheet Game Photo Editor Etc.

Operating System Software Conducts the communication between hardware

like video cards, sound cards and printers Sometimes comes with some basic application

programs Paint Notepad Wordpad Solitaire

Without this software, the computer can’t communicate or run any application software

Functions of an Operating System Monitors activities –

System security and CPU usage

Allocates resources – Flow control

Manages disks and files

Different types of Operating Systems Windows MAC Others

System Requirements You must know what operating system you

have before buying application software. They must be compatible. Look on the back of the case for the

application software or read the instructions included before downloading to make sure they match.

System Requirements You must also know

what hardware you have in the computer so that you will know whether it has enough space and memory to run the application program.

Windows OS 7 Desktop