Introduction to Introduction to ComputersComputersBusiness Technology EssentialsBusiness Technology Essentials

What you will learnWhat you will learn

Troubleshooting Computers and PrintersTroubleshooting Computers and Printers Define computer termsDefine computer terms Lean computer componentsLean computer components Discuss computer softwareDiscuss computer software Discuss the Internet and World Wide Discuss the Internet and World Wide

WebWeb

Parts of the computerParts of the computer

What is a computer?What is a computer?

A computer is an electronic device that A computer is an electronic device that can receive and manipulate data (input) can receive and manipulate data (input) and produce information (output)and produce information (output)

A collection of devices that function A collection of devices that function together as a systemtogether as a system

What does a computer What does a computer do?do? Computers perform Computers perform

four general four general operationsoperations

Information Information Processing CycleProcessing Cycle InputInput ProcessProcess OutputOutput StorageStorage

Process

Storage

Input

Output

How does a computer How does a computer know what to do?know what to do?

A computer must be given a detailed list A computer must be given a detailed list of instructions to tell it what to do.of instructions to tell it what to do.

These instructions are called computer These instructions are called computer programs or software. programs or software.

The program or software must be stored The program or software must be stored on the computer before you can give on the computer before you can give the program/software any other the program/software any other instructionsinstructions

How many programs can you name?How many programs can you name?

What are the components What are the components of a computer?of a computer?

Five primary components that make up a Five primary components that make up a computercomputer Input DevicesInput Devices Central Processing UnitCentral Processing Unit MemoryMemory Output DevicesOutput Devices Storage DevicesStorage Devices

Input DevicesInput Devices

Any hardware component that allows you Any hardware component that allows you to enter data, programs, commands, and to enter data, programs, commands, and user responses into a computeruser responses into a computer

Based on this definition, what do you Based on this definition, what do you think input devices are?think input devices are?

Input DevicesInput Devices

KeyboardKeyboard MouseMouse ScannerScanner Floppy DriveFloppy Drive CD DriveCD Drive InternetInternet Digital CameraDigital Camera

Central Processing UnitCentral Processing Unit Contains the electronic circuits that Contains the electronic circuits that

cause processing to occurcause processing to occur It is the brain of the computerIt is the brain of the computer The CPU contains a chip called a The CPU contains a chip called a

processorprocessor High end processors can perform some High end processors can perform some

operations 10 million time in a tenth of a operations 10 million time in a tenth of a second – the time it takes you to blink!second – the time it takes you to blink!

MemoryMemory Consists of electronic components that Consists of electronic components that

store data – letters, numbers, soundsstore data – letters, numbers, sounds One Kilobyte (KB) = 1,000 memory One Kilobyte (KB) = 1,000 memory

locationslocations One Megabyte (MB)= 1,000,000 memory One Megabyte (MB)= 1,000,000 memory

locations locations Memory location, or byte, usually stores Memory location, or byte, usually stores

one characterone character How much would 96 MB hold?How much would 96 MB hold?

Output DevicesOutput Devices

Output devices make information on your Output devices make information on your computer available for usecomputer available for use

Information output can come in many Information output can come in many different waysdifferent ways

Can you think of output devices? (There Can you think of output devices? (There are LOTS so think outside the box)are LOTS so think outside the box)

Output DevicesOutput Devices

MonitorMonitor PrinterPrinter CD/Floppy DisksCD/Floppy Disks InternetInternet Speakers/headphonesSpeakers/headphones MP3 playersMP3 players

Storage DevicesStorage Devices

They store information from the They store information from the computer. computer.

Floppy DisksFloppy Disks CDs CDs Flash drivesFlash drives

Software Software

Application software consists of Application software consists of programs that tell a computer how to programs that tell a computer how to produce informationproduce information

Software is imperative for you to use your Software is imperative for you to use your computer the way you want to.computer the way you want to.

The InternetThe Internet

The world’s largest network – it links The world’s largest network – it links millions of computers together. millions of computers together.

Can view a web site which is a collection Can view a web site which is a collection of web pages.of web pages.

Each web page has a unique address Each web page has a unique address called a Uniform Resource Locator (URL)called a Uniform Resource Locator (URL)

How to get informationHow to get information

Step 1: Your computer make a Step 1: Your computer make a connection to an Internet Service connection to an Internet Service Provider (ISP)Provider (ISP)

Step 2: You enter the URLStep 2: You enter the URL Step 3: The web browser locates the site Step 3: The web browser locates the site

attached to the URL and displays attached to the URL and displays informationinformation

Monitor won’t workMonitor won’t work

Make sure the monitor is onMake sure the monitor is on Make sure the CPU is onMake sure the CPU is on Make sure the cables in the back of the Make sure the cables in the back of the

monitor are plugged in.monitor are plugged in. Two plugs:Two plugs: PowerPower CPU cableCPU cable

Keyboard or Mouse won’t Keyboard or Mouse won’t workwork

MouseMouse USB plugUSB plug Purple to purplePurple to purple

KeyboardKeyboard Green to GreenGreen to Green

Check to make sure they are plugged inCheck to make sure they are plugged in

Internet doesn’t workInternet doesn’t work

Check the blue cableCheck the blue cable If the bottom right of your screen looks If the bottom right of your screen looks

like this:like this:

You are not connected to the InternetYou are not connected to the Internet

Printer Problems???Printer Problems???

Situation: You have Situation: You have pressed print and pressed print and nothing is happening.nothing is happening. First: Check for paperFirst: Check for paper Second: Check that Second: Check that

you are printing to the you are printing to the correct printercorrect printer

What did we learn?What did we learn? What is a computer?What is a computer? What does a computer do?What does a computer do? What are the five components of a computer?What are the five components of a computer? Where is the CPU, monitor, keyboard, Where is the CPU, monitor, keyboard,

mouse?mouse? What is the Internet?What is the Internet? How does the Internet work?How does the Internet work? What is a URL?What is a URL?

How to purchase a How to purchase a computercomputer

1: Determine what application products you will use on 1: Determine what application products you will use on your computeryour computer If you wanted to use your computer for creating videos what If you wanted to use your computer for creating videos what

would you need? would you need? If you wanted to get on the Internet what would you need?If you wanted to get on the Internet what would you need?

2: Look at purchasing options: buying from your 2: Look at purchasing options: buying from your bookstore, local computer dealer, directly from the bookstore, local computer dealer, directly from the companycompany

3: Use a worksheet to compare computers, service, 3: Use a worksheet to compare computers, service, and other featuresand other features

4: Consider more than just price4: Consider more than just price 5: Buy a computer compatible with the ones you use 5: Buy a computer compatible with the ones you use

elsewhereelsewhere