1.1.2 (Types of processor) Flashcards
1
Q
What is CISC?
A
- Complex Instruction Set Computers
- Longer instructions are used to complete tasks in as few lines of code as possible
- Instructions take a variable number of clock cycles
2
Q
What is RISC?
A
- Reduced Instruction Set Computers
- Uses simple instructions
- Instructions take a single clock cycle
3
Q
What is multicore processing?
A
- A subset of parallel processing using several CPU cores at once
4
Q
What is parallel processing?
A
- Completing several tasks at once
5
Q
What is multiprocessing?
A
- Each core can complete a different task at the same time
- Several problems can be completed concurrently
- Most programs can therefore run faster
6
Q
Compare CISC and RISC
A
- CISC has complex parts, RISC has simple parts
- CISC is expensive to make, RISC is cheaper to make
- RISC uses more RAM, but allows for pipelining
7
Q
What is pipelining?
A
Completing more instructions in a clock cycle by using every register constantly
8
Q
What is a Graphics Processing Unit (GPU) ?
A
- A processor with a high number of cores
- Each completes relatively simple tasks quickly
