Types and components of computer systems

ObjectivesDefine 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

Hardware

Hardware – Internal Components

Hardware – Internal Components Assembled

Smartphone Hardware Components

HardwareHardware 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?

Types of Hardware devicesInput devices-Used to put data into a

computerProcessor-Does something on the data

entered as input.Output device-Used to display the results of

processingStorage device-It keeps all the data and

software that is used

The main components of a computer systemDraw figure 1.5 on page 3 of your textbook.

Processor

ProcessorThe 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)?

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

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