Computer fundamentals components and functions

1. computer
functions & components

2. Computer
An Electronic machine operating under the control of instructions stored in its own memory
• Accepts data
• Manipulates data
• Produces results
• Stores results

3.  Computer is an electronic data processing device which
• Accepts and stores data input,
• Processes the data input, and
• Generates the output in a required format.
 Computer is an Information Storage Processing and Retrieval System
Computer

4. Functions of Computer
 Input: accepting data that has been represented in a way the computer can use.
 Processing: performing arithmetic or comparison (Logical) operation on the represented data
 Output: Displaying results.
 Storage: Storing results for later reuse.

5.  Control Unit: Controls the overall process of the system.
 Programs: A computer program is a list of instruction, written in a programming language,
that tell the computer who to perform that simple operation in order to accomplish a task
Functions of Computer

6. Functions of a computer

7. Component of Computer
 Hardware:
 Software
 Human-ware

8. Hardware
 Hardware represents the physical and tangible components of a computer i.e. the components
that can be seen and touched.
 Examples of Hardware are following:
 Input devices -- keyboard, mouse etc.
 Output devices -- printer, monitor etc.
 Secondary storage devices -- Hard disk, CD, DVD etc.
 Internal components -- CPU, motherboard, RAM etc

9. Hardware

10. Software
 Software is a set of programs, which is designed to perform a well-defined function. A
program is a sequence of instructions written to solve a particular problem.
 There are two types of software
 System Software
 Application Software
 Device drivers

11. Software

12. Human ware