2. Objectives Define and give examples of hardware and software, and describe the difference between them Identify the main hardware components of a computer system Identify the need for an operating system, and describe various user interfaces associated with operating systems Identify different types of computer ranging from mainframes to PDAs

3. Hardware

4. Hardware – Internal Components

5. Hardware – Internal Components Assembled

6. Smartphone Hardware Components

7. Hardware Hardware refers to the physical parts of a computer. It refer to the components that you can see and touch. The hardware components of a computer can be divided into several types of device. Which theses types of device?

8. Types of Hardware devices Input devices-Used to put data into a computer Processor-Does something on the data entered as input. Output device-Used to display the results of processing Storage device-It keeps all the data and software that is used

9. The main components of a computer system Draw figure 1.5 on page 3 of your textbook.

10. Processor

11. The term processor refers to the Central Processing Unit(CPU). The microprocessor is a single integrated circuit that performs the functions of a CPU. Which household devices use microprocessors? What are the advantages and disadvantages? What is a graphics processing unit(GPU)?

12. GPU It is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images.electronic circuit They were designed to improve the display of graphics including 3-D images. Most gaming enthusiasts prefer faster GPUs.

13. Main or Internal Memory Write notes on internal memory and measuring the size of memory pg 4-5 Clearly differentiate between main memory, ROM and RAM.