1. Lesson 1: Computer Concepts – Part 1

2. Computer Systems  Personal Computers Network server Desktop Laptop

3. Desktop Computer Components  System Unit Houses the Central Processing Unit (CPU)  Peripherals These are hardware items that are outside the system unit box, such as the keyboard, mouse, monitor, and printer.

4. Units of Measure  Bits/Bytes  Megahertz  Resolution

5. Inside the System Unit Part 1

6. A System Board PCI expansion slots ISA expansion slots AGP video slotMicroprocessor slot RAM modules plug in here Hard drive connections Floppy drive connection

7. The Microprocessor  A computer on a single silicon chip

8. Microprocessor Performance  Clock speed  Design  Benchmarks  Performance/C ost trade-offs

9. Random Access Memory  Your computer’s “workbench”  Also called Volatile Memory  Locations of RAM  Main memory  Cache  Video

10. Cache RAM  Special, high-speed RAM to make the computer process faster  How much RAM do you need? Enough to run your application programs efficiently.

11. Disk Drives  Drive Types:  Hard drive  Floppy drive  CD  Zip drive  DVD

12. How Disk Drives Work  RAM Compared to disk drives Workbench memory – Storage memory

13. Lesson 1: Computer Concepts – Part 1