Hardware and Software

Hardware and Software

1. Relationship between hardware and software

   • hardware cannot be operated without software

2. Classification of Software

   • System Software
     • Software to maintain, secure and optimise a computer
   • Application software
     • Software to use the computer as a tool to carry out tasks

3. System Software

   • Operating Systems
   • Utiltiy Programs
   • Libraries
   • Translators
     • compiler
     • assembler
     • interpreter

4. Role of an Operating System

   • Hide the complexities of the hardware
   • Managing resources
     • allocating processor time
     • managing memory
     • managing I/O devices