CP1610:Introduction to Computer Components

Basic PC Components

What is a Computer?

A machine A tool A device that ‘computes’ (or calculates) A device that takes our input, makes

calculations based on the data, and returns the desired output

Hardware and Software

Hardware

Physical components of a computer

Visible part of a system

Software

Set of instructions that directs hardware to accomplish a task

The intelligence

Hardware Components

Outside computer case: input/output devices Called ‘peripheral’ devices

Inside the case: processing and storage CPU – most important component Motherboard Etc…

Parts Inside a Computer

What Hardware Needs in Order to Operate

1. Method for CPU to communicate with it

2. Software to instruct and control it

3. Electricity to power it

Four Functions of a Computer

Input Process Storage Output

How Components Interact

Hardware Used for Input and Output Popular input devices:

KeyboardMouse

Popular output devices:MonitorPrinter

How Components Interact

Ports: How ‘Peripherals’ Connect

The Boot Process

The process by which a computer safely starts up.Power-up and ‘Voltage Good’ test. CPU triggers POST (Power On Self-Test). BIOS looks for ‘bootable drive.’ ‘Boot Sector’ provides directions to OS

and drivers.