Computing - systems architecture

register

small piece of volatile memory directly accessed by CPU, storing instructions, addresses or data

purpose of CPU

process data by fetching, decoding and executing instructions

cache

high speed memory on processor that temporarily stores frequently used data and instructions, on or near CPU

CU

sends signals to control how data moves around the CPU

affects CPU speed

clock speed, cache size, number of cores

clock speed

hertz, number of cycles per second

von neumann architecture

computer design where instructions and program data are stored in the same place in binary based on stored program concept

embedded system

computer system with a dedicated task within larger system

embedded system eg

coffee maker, coffee-water output

embedded system eg 2

washing machine, fill turn drain

CIR

decodes instruction

neumann stuff

CPU, CU, ALU, cache, internal clock

hertz order

kilo, mega, giga, tera