Software Software or Programs A set of detailed

Software

Software or Programs A set of detailed directions telling the computer exactly what to do, one step at a time. n Can be one line of code or several million lines n

Two types of software Operating System n Application n

Application Software Written for a particular purpose n Could be n n n Word Processing Spreadsheet Game Photo Editor Etc.

Operating System Software n n Conducts the communication between hardware like video cards, sound cards and printers Sometimes comes with some basic application programs n n n Paint Notepad Wordpad Solitaire Without this software, the computer can’t communicate or run any application software

Functions of an Operating System n n n Monitors activities – System security and CPU usage Allocates resources – Flow control Manages disks and files

Different types of Operating Systems n n n Windows MAC Others

System Requirements You must know what operating system you have before buying application software. n They must be compatible. n Look on the back of the case for the application software or read the instructions included before downloading to make sure they match. n

System Requirements n 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