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CHAPTER 19 - COMPUTER & TECHNOLOGY SKILLS. Workforce Essentials Ms. Baumgartner. 19.1 Objectives. Explain the importance of keyboarding skills Summarize how a computer works. In what ways are computers being used here at CHS?? Attendance Grades Instruction Lunchroom

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chapter 19 computer technology skills

CHAPTER 19 -COMPUTER & TECHNOLOGY SKILLS

Workforce EssentialsMs. Baumgartner

19 1 objectives
19.1 Objectives
  • Explain the importance of keyboarding skills
  • Summarize how a computer works
lesson 19 1 how computers work
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
keyboarding skills
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!
keyboarding skills1
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
keyboarding skills2
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
keyboarding skills3
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

understanding computers
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

understanding computers1
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

understanding computers2
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

understanding computers3
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

understanding computers4
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
understanding computers5
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
understanding computers6
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
understanding computers7
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
understanding computers8
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
understanding computers9
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
19 1 checkpoint
19.1 Checkpoint
  • DO NOT continue until you have answered #1-6 on page 272 in textbook
lesson 19 2 computer hardware software
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
computer hardware
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
computer hardware1
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
computer software
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
computer software1
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
computer software2
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
slide25

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
19 2 checkpoint
19.2 Checkpoint
  • DO NOT continue until you answer #1-3 on page 275
lesson 19 3 the internet the future of computers
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
the internet
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
the internet1
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
the internet2
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
the internet3
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
the internet4
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
the internet5
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
the internet6
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
the internet7
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
the internet8
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
the internet9
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
19 3 checkpoint
19.3 Checkpoint
  • DO NOT continue until you answer #1-3 on page 280