1. Introduction to Computers
Lesson 4B
Introduction to Computers

2. Central Processing Unit
The computer’s primary processing hardware, which interprets and executes program instructions and manages the functions of input, output, and storage devices

3. Architecture
A processor’s performance is dictated by its internal design, or architecture

4. Microcomputer Processors
Intel
Advanced Micro Devices (AMD) processors
Motorola processors
RISC
Parallel processing

5. Extending the Processor’s Power to Other Devices
Serial and parallel ports
Specialized expansion ports

6. Examples of Specialized Expansion Ports
SCSI
USB
IEEE 1394 (FireWire)
Musical Instrument Digital Interface (MIDI)

7. Expansion Slots and Boards
Allow users to adapt, or configure, the PC to their own needs

8. PC Card
Another type of expansion card, the size of a credit card

9. Plug and Play
The Plug and Play standard makes it easier to install hardware via an existing port or expansion slot

10. CPUs Used in Personal Computers
Lesson 4B
CPUs Used in Personal Computers

11. Review Questions What does architecture refer to?
Name the five microcomputer processors.
Name the ports that let you extend the processor’s power to other devices.
What are expansion slots and boards used for?