Operators

Arithmetic Operators

Logical Oporators

Relational Operators

Comparison

ALU

ALU stands for Arithmetic and Logical Unit. It performs all the arithmetic and logical calculations. ALU also does comparisons takes decessions . Whenever any calculations has to be done the Control Unit transfers the required data from Memory Unit to ALU

CPU/Microprocessor

CPU Stands for Central Processing Unit.
simply it is the heart of the computer
It converts user given data into meaningful information,
the conversion user given data into meaning information is called process,
CPU have mainly 3 parts

ALU

MU

CU

Input Devices of Computer

  

1. Keyboard
2. Mouse
3. Joystick
4. Scanner
5. Digitizer
6. Trackball
7. Lightpen
8. Barcodereader
9. Touchscreen

All Input Devices performs the folllowing functions they are

• Accepts the Data and Inputs from the user
• Converts into a form that computer can understand
• sends the converted data to CPU for further processing

Block Diagram of Computer

Data

Data is nothing but information we storing in the computer like text, pictures, video, audio etc..,

Meaning of Computer

The word Computer is derived from "Computation" which means "calculations".

Computer is an electronic device that can accept data from the user store process init and produce the required output or result.