1.1 Component 1

Question	Answer
computer	an electronic device that takes an input, processes the data and makes an output
computer program	a set of instructions that allow a process to be carried out
memory	stores a program and data
CPU	central processing unit fetches, decodes and executes data
fixed program	a program with a set purpose.
programs	a collection of instructions that perform a specific task
ALU	arithmetic logic unit performs calculations and logical decisions
CU	control unit sends signals to tell the other components how to respond to the instructions that have been sent to the processor
cache	temporary storage of instructions and data that have been read and written from the main memory
PC	program counter holds the address of the next instruction in the main memory
MAR	memory address register holds the address of where the data is to be fetched or stored
MDR	memory data register holds the data fetched from, or to be written in memory
ACC	accumulator holds the results of calcualtions
stored program computer	a device with changeable programs
clockspeed	number of instructions you could get in a given time.
core	recieves instructions and acts upon them
embedded system	a computer system with a dedicated function within a larger mechanical or electrical system
microcontrollers	CPUa with integrated memory

Resource summary

	Created by Olivia Szydlo about 5 years ago