1. Introduction to Computers Business Technology Essentials

2. What you will learn  Troubleshooting Computers and Printers  Define computer terms  Lean computer components  Discuss computer software  Discuss the Internet and World Wide Web

3. Parts of the computer

4. What is a computer?  A computer is an electronic device that can receive and manipulate data (input) and produce information (output)  A collection of devices that function together as a system

5. What does a computer do?  Computers perform four general operations  Information Processing Cycle  Input  Process  Output  Storage Process OutputStorage Input

6. How does a computer know what to do?  A computer must be given a detailed list of instructions to tell it what to do.  These instructions are called computer programs or software.  The program or software must be stored on the computer before you can give the program/software any other instructions  How many programs can you name?

7. What are the components of a computer?  Five primary components that make up a computer  Input Devices  Central Processing Unit  Memory  Output Devices  Storage Devices

8. Input Devices  Any hardware component that allows you to enter data, programs, commands, and user responses into a computer  Based on this definition, what do you think input devices are?

9. Input Devices  Keyboard  Mouse  Scanner  Floppy Drive  CD Drive  Internet  Digital Camera

10. Central Processing Unit  Contains the electronic circuits that cause processing to occur  It is the brain of the computer  The CPU contains a chip called a processor  High end processors can perform some operations 10 million time in a tenth of a second – the time it takes you to blink!

11. Memory  Consists of electronic components that store data – letters, numbers, sounds  One Kilobyte (KB) = 1,000 memory locations  One Megabyte (MB)= 1,000,000 memory locations  Memory location, or byte, usually stores one character  How much would 96 MB hold?

12. Output Devices  Output devices make information on your computer available for use  Information output can come in many different ways  Can you think of output devices? (There are LOTS so think outside the box)

13. Output Devices  Monitor  Printer  CD/Floppy Disks  Internet  Speakers/headphones  MP3 players

14. Storage Devices  They store information from the computer.  Floppy Disks  CDs  Flash drives

15. Software  Application software consists of programs that tell a computer how to produce information  Software is imperative for you to use your computer the way you want to.

16. The Internet  The world’s largest network – it links millions of computers together.  Can view a web site which is a collection of web pages.  Each web page has a unique address called a Uniform Resource Locator (URL)

17. How to get information  Step 1: Your computer make a connection to an Internet Service Provider (ISP)  Step 2: You enter the URL  Step 3: The web browser locates the site attached to the URL and displays information

18. Monitor won’t work  Make sure the monitor is on  Make sure the CPU is on  Make sure the cables in the back of the monitor are plugged in.  Two plugs:  Power  CPU cable

19. Keyboard or Mouse won’t work  Mouse  USB plug  Purple to purple  Keyboard  Green to Green  Check to make sure they are plugged in

20. Internet doesn’t work  Check the blue cable  If the bottom right of your screen looks like this: You are not connected to the Internet

21. Printer Problems???  Situation: You have pressed print and nothing is happening.  First: Check for paper  Second: Check that you are printing to the correct printer

22. What did we learn?  What is a computer?  What does a computer do?  What are the five components of a computer?  Where is the CPU, monitor, keyboard, mouse?  What is the Internet?  How does the Internet work?  What is a URL?

23. How to purchase a computer  1: Determine what application products you will use on your computer  If you wanted to use your computer for creating videos what would you need?  If you wanted to get on the Internet what would you need?  2: Look at purchasing options: buying from your bookstore, local computer dealer, directly from the company  3: Use a worksheet to compare computers, service, and other features  4: Consider more than just price  5: Buy a computer compatible with the ones you use elsewhere