Chapter 1- Computer Architecture Flashcards
What are the three main parts of the CPU?
ALU — Arithmetic Logic Unit
Register
CU — Control Unit
Describe the purpose of the arrows in the diagram. Your answer should refer to the direction the arrows point in and the number of arrows used to connect the different parts of the diagram.
The arrows represent the flow of data. There are 4 arrows. It goes from INPUT ——> CENTRAL PROCESSING UNIT——> OUTPUT
Devices RAM and ROM Devices
UP//// DOWN
BACKING STORAGE DEVICES
What is the function of the Register?
The Register temporary holds data in the processor until the process is ready to deal with it
What supervises and controls the flow of data in the CPU?
Control Unit
What is the function of the ALU?
The ALU is in charge of the Arithmetic calculations and decision making
What does RAM and ROM stand for?
RAM — Random access memory
ROM — Read only memory
What are the FOUR deferences between RAM and ROM?
RAM — When power is switched off users data IS lost, data in RAM is the users software
ROM — When power is switched off users data is NOT lost, data in ROM is the computers software
What is word size?
Word size is the number of bits that can be fetched by the processor from RAM at any one time
How many bits can a 64 bit computer process at once?
64 bits
In order for the computer system to be faster what needs to be done?
The more bits that can be fetched and processed the faster the computer system
How many bits are in 4 BYTES?
32
