Chapter 1 Important Ideas Williams - PowerPoint PPT Presentation

1 / 12
About This Presentation
Title:

Chapter 1 Important Ideas Williams

Description:

Classified by the amount of data they send in a given time - measured in ... FoxFire. What is the Web? Chapter 1 - Key Ideas (Williams & Tollett) Dr. McNierney ... – PowerPoint PPT presentation

Number of Views:45
Avg rating:3.0/5.0
Slides: 13
Provided by: donnamc6
Category:

less

Transcript and Presenter's Notes

Title: Chapter 1 Important Ideas Williams


1
Chapter 1 Important Ideas(Williams
Tollett)Dr. McNierney
  • What is the Web?
  • Internet
  • History of Internet
  • Connect computers to computers gt network
  • Store data and sends it out
  • ISP (Internet Service Provider)online
    serviceconnects computer to Internet

2
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 2. Modem ( Basics gt 2 types)A device that
    modulates an analog signal to encode digital data
    and demondulates a signal to decode the
    transmitted data.
  • How does it work?

3
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 2. Modem
  • Classified by the amount of data they send in a
    given time - measured in bits per second (bps)
  • Dial -up using a phone line (analog)
  • Broadband can be cable, satellite, DSL
    high-speed

4
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 3. Speeds
  • Baud Rate - How fast data is received
  • 56 k - typical dial-up
  • High speed - varies up to 1500 bits per second
    examples satellite, cable, T1, DSL, ISDN

5
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 4. Online Services and ISP
  • ISP - Internet Service Provider
  • gt direct to Internetgt connected to a server
  • AOL (or similar) provides access to Internet not
    direct

6
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 4. What is on the Internet? Define each with how
    they can be used
  • Newsgroups
  • Mailing lists
  • Search engines
  • Blogs
  • Podcasts

7
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 5. What is the World Wide Web?
  • Describe what is contained on the web.
  • What is hypertext?
  • What is the home page of each site called?
  • What can affect the time to load a page?

8
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 5. Browsers
  • Software on computer that allows user to use
    the web.
  • Identify several browsers
  • Safari - Mac
  • Netscape
  • Internet Explorer
  • FoxFire

9
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 6. Web Addresses or URL
  • Uniform Resource Locator (URL) - each page has an
    address
  • Every page stored on a server
  • Host - server that posts the site

10
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
7. Parts of web address http//www.cnn.com/news/
sports
World Wide Web
Hypertext transfer protocol
Domain name - who owns the site
Path, tells browser where to find page
11
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 8. Domain Name
  • Defines the nature of the web site
  • What are some examples?
  • .com ( Commercial)
  • .net ( Network organization)
  • .edu ( Educational - post secondary only)
  • .gov ( Government - US only)
  • .mil ( Military)

12
What is the Web?Chapter 1 - Key Ideas
(Williams Tollett)Dr. McNierney
  • 8. Downloading Files
  • The file extension indicates how the file was
    compressed or encoded
  • What are examples?
Write a Comment
User Comments (0)
About PowerShow.com