hardware Flashcards
what are the many sub components on the CPU?
controller ALU registers and internal memory
what is the CPU
the main component in a computer for processing data
what is control unit
directs the flow of instructions/ data and coordinates the other parts of the CPU. it generates clock ticks or controls the clock
describe the ALU (arithmetic logic unit)
performs all mathematical calculations and logical operations in the CPU
what is registers
fast access storage locations on CPU where data is temporarily stored
what is program counter
a counter that keeps track of the memory address of the instruction to be executed next
what is memory address register
stores the address in the main memory that is currently being read or written
what is current instruction register
a temporary holding area for the instruction that has just been fetched from memory
what is memory
used for temporary storage of currently running programs and data
what is cache
very fast, volatile memory, very expensive, only a small amount of it in each computer
describe clock speed
the number of FDE cycles that can be carried out each second
what is the difference between volatile and permanent memory
volatile memory isn’t saved when the computer turns off while permanent is saved
