Hardware Flashcards
How does the Control Unit execute instructions
Sends read and write signals to memory and addresses of instructions to be fetched
What does the Arithmetic Logic Unit do
Breaks down instructions and performs calculations and logic comparisons
What is the accumulator
A register that stores the results of each execution
What is a register
Stores current instructions in
What is serial processing
Executes instructions sequentially
What is parallel processing
Simultaneous breaking up and running program instructions
Why is hyper threading effective
Instructions are preloaded to second set of registers
A set of instructions
A thread
What is context switching
Switching between two processes when saving and loading into registers
Why is multiprocessing effective
Duplicating the cores
What is the point of Cache
Fast access speed memory which is pre fetched from the RAM for future use
What does RAM do
Stores programs currently in use and data associated
DRAM
Dynamic RAM contains capacitor, losses it’s charge and must be refreshed
How does SDRAM avoid CPU waiting
Synchronous DRAM refreshes is synced with the CPU
What is Latency
The amount of time taken for component to respond
