1.1.2 Types of processor

Question 1

cisc

Answer 1

• each instruction may take multiple cycles
• single register set
• more addressing modes
• more instructions => less lines of code => more memory efficient
• complicated processor design so more expensive circuitry

Question 2

risc

Answer 2

• each instruction performs a simple task in one fde cycle
• limited num of instructions
• simple processor design => less expensive circuitry
• easier to pipeline
• compilers more complex than cisc

Question 3

gpu

Answer 3

• designed specifically for graphics => built in circuitry/instructons
• able to perform an instruction on multiple pieces of data at one time=> quicker
• large num of cores => parallel processing

Question 4

multicore/parallel system

Answer 4

• parallel processing => processing of multiple pieces of data simeltaneously eg. SIMD/MIMD
• multitasking => each core can handle a different taks simeltaneously
• backround task
• improved responsiveness