1. Revison
Part two

2. topology
SQL
Report
Packets
logic
Peer to peer
Metadata
Operating
System
Primary key
Flat file
Form
DBMS
Logic gates
DNS
System
cleanup
RAM
Automatic
updates
LAN
WAN

3. We switch it on… Explain: Which memory is used?
What type of memory is it?
ROM – holds the initial instructions – what, when and where to find the operating system for instance.
Non volatile -

4. Then… Stored program concept: Uh? What happens? Q1 – Q2 – Q3 – Q4 -
The program and data elements are loaded into the memory.
1. What type of memory?
2. Why RAM? Why not access programs and data from the hard drive?
3. So, what does RAM do?
4. What will the size of the RAM mean to the operation of a computer?

5. Then… Fetch …… (complete) Eh? What happens?
Processor fetches, decodes, executes instructions from the memory.

6. Then… Parts of the CPU 1 1 2 2 3 3 ALU CU Reg Program counter
Instruction Register
Accumulator

7. And… How does the CPU communicate with the memory? 1 2 3 Bus
Data, Address, Control

8. Somebody has saved me a couple of hours of work…
computing-revision-materials/
Bus
Data, Address, Control