Chapter 1- Computer Architecture Flashcards Preview

Computing Science > Chapter 1- Computer Architecture > Flashcards

Flashcards in Chapter 1- Computer Architecture Deck (11):
1

What are the three main parts of the CPU?

ALU — Arithmetic Logic Unit

Register

CU — Control Unit

2

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

3

What is the function of the Register?

The Register temporary holds data in the processor until the process is ready to deal with it

4

What supervises and controls the flow of data in the CPU?

Control Unit

5

What is the function of the ALU?

The ALU is in charge of the Arithmetic calculations and decision making

6

What does RAM and ROM stand for?

RAM — Random access memory

ROM — Read only memory

7

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

8

What is word size?

Word size is the number of bits that can be fetched by the processor from RAM at any one time

9

How many bits can a 64 bit computer process at once?

64 bits

10

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

11

How many bits are in 4 BYTES?

32