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1.1 Revision (Parts of computer (The ALU (Handles the data processing…
1.1 Revision
Parts of computer
Control unit
controls the way data moves
controls flow of data
it executes the instructions provided by the program
The ALU
Handles the data processing inside the cpu
Arithmetic operation
Logic operation
Cache
Stores most used programs
Cpu performance factors
clock speed
multi core
cache
Graphics CPU
RAM
Computer system
Input-Process-Output
Input- put data in computer
Process- something that happens to data
Output- Computer puts out a result
Embedded System
System designed to do a specific Job
Washing machine
phone
Traffic light system
Purpose of cpu
Cpu fetches instructions from memory
It decodes the instructions and then executes the instructions
purpose of cpu is to process data
controls other component of cpu
Hard disk
DVD disk
Von Neumann architecture
Created by a scientist about how a computer system is
MAR and MDR
Program counter
The Accumlator
Input devices
keyboard
mouse
Touch screen
Cpu requires instructions
System Software
Programs used to manage operation system
Application software
Fetch-Decode-Execute cycle
Ram and MDR are used