CHAPTER 19 - COMPUTER & TECHNOLOGY SKILLS

1. CHAPTER 19 -COMPUTER & TECHNOLOGY SKILLS Workforce EssentialsMs. Baumgartner

2. 19.1 Objectives • Explain the importance of keyboarding skills • Summarize how a computer works

3. In what ways are computers being used here at CHS?? Attendance Grades Instruction Lunchroom Name 1 other way on your own LESSON 19.1HOW COMPUTERS WORK

4. KEYBOARDING SKILLS • Computer literacy is a vital skill in today’s workplace, regardless of your job • Computer literacy is a general knowledge of what computers are, how they work, and for what they can be used • A basic level of computer literacy is becoming a requirement in many jobs today!

5. KEYBOARDING SKILLS • A computer is an electronic tool • It helps people do all kinds of work • A computer, also called processor, is an electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations • A computer can work 24 hours a day • It can store vast amounts of information and can communicate with is human user • It can work at VERY high speeds

6. KEYBOARDING SKILLS • Keyboarding skills means the ability to type and to give commands to a computer using a keyboard • The arrangement of letters and numbers on the keyboard is the same as for a typewriter • No matter what type of business or industry you work in, you will benefit by knowing how to use a computer keyboard

7. KEYBOARDING SKILLS • Let’s test our keyboarding skills! http://www.typingtest.com/ CLICK RED BOX THAT READS START • Beat Ms. Baumgartner’s score and earn 10 Bonus Points! Ms. Baumgartner’s speed: 53 WPM

8. UNDERSTANDING COMPUTERS • In very simple terms, the computer works in 3 steps: • It receives information • It does tasks according to these instructions • It shares the results Input Processing Output

9. UNDERSTANDING COMPUTERS • A computer solves problems much like people do…let’s compare how you and the computer would add 20 + 43 • You receive information by either reading or hearing the numbers • A computer receives information in the form of electronic signals, 0’s & 1’s (binary numbers) Input

10. UNDERSTANDING COMPUTERS • You draw upon your knowledge of math in your memory • You bring together the data (20, 43) and the method (addition) and come up with the answer • A computer draws upon a program stored in its memory • A program consists of instructions on how to solve a certain problem or do a certain task Processing

11. UNDERSTANDING COMPUTERS • You report the result (63) by writing down the answer or saying it out loud. • A computer changes the result from electronic language to human language • It presents the result in print, sound, or another form Output

12. UNDERSTANDING COMPUTERS INPUT • Input devices let users enter information and change it into electronic signals the computer can use • What you use to enter information into the computer • The most common input device is a keyboard, other examples are: • Modems - Mouse • Light Pens - Flash drive • Touchpads - Microphone • Scanners

13. UNDERSTANDING COMPUTERS • A modem is an electronic device for transmitting computer data over standard telephone lines or fiberoptic cable • 3 kinds of input are fed in to the computer • Programs • Data (text and numbers) • Commands (entered by user) • Input is sometimes sent to memory and sometimes to the arithmetic and logic section of the computer

14. UNDERSTANDING COMPUTERS MEMORY • The memory is the part of the computer system that records and stores data and programs • The memory consists of 2 important parts: • ROM – Read-only memory • RAM – Random-access memory

15. UNDERSTANDING COMPUTERS ARITHMETIC & LOGIC • The arithmetic and logic section (ALU) is the heart of the computer, it does the actual processing • The ALU adds, subtracts, multiplies, divides, and compares numbers

16. UNDERSTANDING COMPUTERS CONTROL • The control section directs the other 4 parts of the computer system • Based on the program, the control section decides when to accept data and from which input device • It chooses when to send info from input devices to memory and when to send it to the ALU • It decides when to call up a program and data from storage • It decides when the computer’s work should go to an output device

17. UNDERSTANDING COMPUTERS OUTPUT • Output devices change date from electronic language into forms that people can understand • Most output is displayed, printed, or stored • The most common output devices are: • Speakers • Monitor • Printer • Headphones

18. 19.1 Checkpoint • DO NOT continue until you have answered #1-6 on page 272 in textbook

19. Do You Know the Difference?? LESSON 19.2COMPUTER HARDWARE & SOFTWARE • Identify types of computers and computer hardware • Name and describe the 2 types of computer software and 6 types of application software

20. COMPUTER HARDWARE • The physical equipment that makes up a computer is called hardware • The most important piece of hardware is the central processing unit (CPU), which does the actual processing or computing • A computer system usually has several input and output devices • These devices are called peripherals because they are located outside of the CPU • So, the monitor, printer, and keyboard are all examples of peripherals and hardware

21. COMPUTER HARDWARE • The most common computer is the personal computer, or PC • Smaller portable PC’s are called notebooks • Even smaller PC’s are available in the form of personal digital assistants, or PDA’s • For personal computers, the CPU is contained on a single tiny silicon chip – a microprocessor • Other types of computers are workstations, minicomputers, and mainframes

22. COMPUTER SOFTWARE • Computer software is the instructions that tell the computer what to do • Software and programs mean the same thing • There are 2 main types of software: • System software manages what happens inside the computer • Application software performs tasks such as word processing

23. COMPUTER SOFTWARE SYSTEM SOFTWARE • A computer must have a program before it can do anything • When you first boot up a computer, system software is loaded into the computer’s main memory • Example) Windows XP and Vista • Today, most popular system software uses what is called a graphical user interface (GUI) • A GUI is a user-friendly interface using menus and small pictures (icons) • Your desktop is a GUI

24. COMPUTER SOFTWARE APPLICATION SOFTWARE • Common types of application are: • Word processing (Word) • Lets you create documents like letters & reports • Spreadsheet (Excel) • Put data into rows/columns & performs calculations • Database management (Access) • Used to organize, store and retrieve information • Personal information management (Outlook) • Email, calendar, address book are all included

25. Presentations (PowerPoint) • Create slides, sound, animations and videos • Communications (Internet Explorer) • Transferring data from one computer to another through web browsing • Software suites (Office) • Several programs in 1 where you can switch back and forth as you work

26. 19.2 Checkpoint • DO NOT continue until you answer #1-3 on page 275

27. Can You Reach the End of the Internet? • Explain how the Internet works • Discuss the possible future impact of computers LESSON 19.3The InTERNET & THE FUTURE OF COMPUTERS

28. THE INTERNET • The Internet has the potential to be one of the most significant technological developments of all time • It influences the ways in which we learn, work, communicate, spend leisure time, conduct business, etc • When 2 or more computers are linked together by cable or wireless, this is called a network • Networks enable computers to share software, data files, printers, and other equipment • Example) CHS network

29. THE INTERNET BRIEF HISTORY • The Internet is an “interconnected network of networks” that links millions of smaller computer networks worldwide • The Internet originated in the late 1960’s through a government project • The purpose was to link government research facilities to share resources and data • ARPANET, as it was called, grew steadily throughout the 1970’s to other countries

30. THE INTERNET • Despite its growth, the Internet was difficult to use and was limited to communicating data and text-based information • This changed with the development of the World Wide Web • The Web is a network within the Internet that provides sounds, pictures, and moving images in addition to text • It made the Internet popular and easier to use

31. THE INTERNET • The arrival of browser software in 1993 further simplified use of the Internet and began an era of explosive growth • A browser is a type of software used to locate and display information on the Web • Even though the Web represents only part of the Internet, most people now use the terms Internet, Net, and Web interchangeably

32. THE INTERNET HOW THE INTERNET WORKS • An Internet service provider (ISP) allows a computer to connect to the Internet, usually for a fee • Example) America Online (AOL) • The connection to the Internet can occur via telephone access, modem, wirelessly, etc • A browser is needed to navigate the web • Example) IE, Mozilla Firefox, Netscape Navigator • Most computers come with browser software, if not you can download for free

33. THE INTERNET WEB BASICS • When you connect to an ISP, your browser is launched and displays your home page • A home page is the starting point from which to begin navigating or ‘surfing’ the web • The Web is made up of various sites, each of which has an electronic address called an Uniform Resource Locator (URL) • Example) http://www.whitehouse.gov • Another way to go to a web site is to click on a hyperlink

34. THE INTERNET • Hyperlinks enable a user to jump from 1 page to another on the Web without keying the URL • A hyperlink can be text that is underscored or in a different or a graphic • Click here to visit CHS’s website

35. THE INTERNET • The most common uses of the Internet are as follows: • Communication • Research • News & entertainment • Consuming goods & services • WARNING – Not all information on the Web is accurate and appropriate, use with caution

36. THE INTERNET THE FUTURE OF COMPUTERS • The rapid development of computer technology should continue in the future • Computers will get smaller, more powerful, and less expensive • The following changes seem likely…. • # of occupations requiring computer literacy & keyboarding skills will increase • Use of industrial robots will increase • The automation of offices and service industries will increase • Computers & robots may eliminate many jobs • Technology will also create new jobs

37. THE INTERNET • This is an exciting time! • Not since the Industrial Revolution has the workplace undergone such changes • Learn as much as you can!!! • Not being able to use a computer could hold you back from getting or advancing in a job

38. 19.3 Checkpoint • DO NOT continue until you answer #1-3 on page 280

39. THE END !!!