System Software (Needed to run the computer's hardware and application program)

System Software (Needed to run the computer's hardware and application program)

1. Application software

   • General purpose
     • complere ECDL or graphics package
   • special purpose
     • specific task ( fingerprint, hotal booking e.t.c)

2. operating system (is a set of program that lies between Application software and hardware)

   • Resourse management(managing all computer hardware (keyboard, printer)
   • interface of user to enable users to perform tasks (downloading, installong anything)

3. Utility program optimised (best) performance of the computer and give backup files, restoring corrupted files from backup .e.t.c

   • Automatic backup
     • Where
     • what
     • how using full that zips the backupfile or mirror backup does not zip them
     • when
   • Automatic updating
     • Application software also needed to updated (as bugs fixes improvements that become available to peolpe with a licence for that package).
   • virus checker utility check your hard drive and remove the virus and protect coming emails
   • Compression software (copy, past , delete, create e.t.c) are part of operating system
     • zipped or compressed files (utility program) can transmitt quicker than internet but their is a limint of size
   • Disk defragmentation
     • Can reorganise a megnetic hard disk so the file which have been split in to blocks and stored all over the disk
       • Recombined in a single series of sequential blocks
         • This makes the reading quicker.
     • Software utility Optimised Drive, previously called disk defragment which run automatically on a weekly base

4. Open sourse vs Closed sourse

   • Closed Source
     • Developers, company will have the copyright
     • Restrication on how it can be used
     • sold from licence buy money
   • Open source (can change and read the code)
     • Organic = it changes over the time as developer modify it
     • No commercial organisation so no helpline or regular update
     • software is licensed but no charge
     • Soldable by developers
     • New software from open source must also be open
     • Anyone can modify it
   • Freewave (free to use but does not get the access to the soource cod
     • Restrictions

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