Paper 1 - Computer Systems

Paper 1 - Computer Systems

1. Systems Architecture

   • CPU Pupose
   • Von Neumann architecture
     • MAR (Memory Address Register)
     • MDR (Memory Data Register)
     • Program Counter
     • Accumulator
   • common CPU components and their function:
   • the function of the CPU as fetch and execute instructions stored in memory
   • how common characteristics of CPUs affect their performance:
   • embedded systems

2. Memory

   • the difference between RAM and ROM
   • the purpose of ROM in a computer system
   • the purpose of RAM in a computer system
   • the need for virtual memory
   • flash memory

3. Storage

4. Wired and wireless networks

5. Network topologies, protocols and layers

6. System security

7. System software

8. Ethical, legal, cultural and environmental concerns