COMPUTER SYSTEM

1. OPERATING SYSTEM :

1.1. STAND ALONE OPERATING SYSTEM

1.2. SERVER OPERATING SYSTEM

1.3. EMBEDDED/MOBILE OPERATING SYSTEM

2. FUNCTIONS OF OPERATING SYSTEMS

2.1. START AND SHUT DOWN THE COMPUTER

2.2. PROVIDE A USER INTERFACE

2.3. MANAGE PROGRAM

2.4. COORDINATE TASKS

2.5. CONFIGURE DEVICE

2.6. ESTABLISH AN INTERNET CONNECTION

2.7. MONITOR PERFOMANCES

2.8. PROVIDE UTILITIES

2.9. AUTOMATICALLY UPDATE

2.10. CONTROL OF A NETWORK

2.11. ADMINISTER SECURITY

3. UTILITY PROGRAMS : ALLOWS A USER TO PERFORM MAINTANACE- TYPE TASK

3.1. FILE MANAGER

3.2. DISK CLEANUP

3.3. COMPRESSION TOOLS

3.4. ANTI-VIRUS PROGRAM

3.5. SPYWARE REMOVER

3.6. DISK DEFRAGMENT

3.7. BACKUP RESTORE

4. SOFTWARE : IS A SET OF INSTUCTIONS THAT TELLS THE COMPUTER WHAT TASK TO PERFORM AND HOW TO PERFORM THEM

4.1. SYSTEM SOFTWARE

4.1.1. OPERATING SYSTEM

4.1.2. UTILITY PROGRAM

4.2. APPLICATION SOFTWARE

5. CATOGERIES SOFTWARE

5.1. OPEN SOURCE SOFTWARE (OSS)

5.2. PROPRIETARY SOFTWARE

6. APPLICATION SOFTWARE

6.1. TYPES:

6.1.1. WEB BROWSER

6.1.2. WORD PROCESSING

6.1.3. SPREADSHEET

6.1.4. DATABASE

6.1.5. PRESENTATION