Computer science

Computer science

1. systems architecture

   • MAR (Memory Address Register)
   • MDR (Memory Data Register)
   • Program Counter
   • Accumulator

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

   • the need for secondary storage
   • data capacity and calculation of data capacity requirements
   • common types of storage
     • optical
     • magnetic
     • solid state
   • suitable storage devices and storage media for a given application, and the advantages and disadvantages of these, using characteristics:
     • capacity
     • speed
     • portability
     • durability
     • reliability
     • cost.

4. Wired and wireless networks

5. Network topologies , protocals and layers

6. system security

7. systems software

8. Ethical, legal . cultural and enviromental concerns