Basic Computer Fundamentals

1. Basic Computer Fundamentals

2. Topics included… • What Is a Computer? • Computer System Components • Hardware • Types of Memory • Input Devices • Output Devices • Overview of Software • Operating System

3. What Is a Computer? • A computer is a programmable machine with two principal characteristics: • It responds to a specific set of instructions in a well-defined manner. • It can execute a prerecorded list of instructions (a program). back

4. Computer System Components back

5. Hardware Hardware refers to objects that you can actually touch, like disks, disk drives, display screens, keyboards, printers, boards, and chips.

6. Hardware Components in Action • Instruction phase • Step 1: Fetch instruction • Step 2: Decode instruction • Execution phase • Step 3: Execute the instruction • Step 4: Store the results

7. MONITORS

8. K E Y B O A R D S back

9. Types of Memory • Random access memory (RAM) • EDO RAM • SDRAM • DRAM • Read-only memory (ROM) • PROM • EPROM back

10. Input Devices • Personal computer input devices • Voice-recognition devices • Digital computer cameras • Terminals • Scanning devices back

11. Output Devices • Display Monitors • Liquid Crystal Displays (LCDs) • Printers and Plotters • Music Devices back

12. Overview of Software back

13. Operating System • Perform common computer hardware functions • Provide a user interface • Provide a degree of hardware independence • Manage system memory • Manage processing tasks • Provide networking capability • Control access to system resources • Manage files back

14. ANY QUERIES?? THANK YOU back