Computer Systems

Computer Systems

1. Memory

   • ROM
     • Provides the initial instructions when a computer is first turned on.
     • Known as the bootstrap/boot program/bootstrap loader
     • Read only
       • Non-volatile
     • ROM is small
   • RAM
     • Purpose: Temporary storage of instructions and data
     • In use by the CPU
   • Virtual Memory
     • Needed because the amount of physical memory may be less than is required by the open programs

2. Storage

3. Wired and Wireless Networks

4. Networks Topologies, Protocols and Layers

5. System Security

6. System Software

7. Ethical, Legal, Cultural and Environmental Concerns

8. Systems Architecture