Here is the PowerPoint outline for Chapter 17.  Remember to do the application exercise at the end.

Analog Versus Digital

•      Analog is a physical reproduction of the image or sound it is recording

•      Digital is a transformation of the physical event into a string of binary digits (numbers). The computer can recognize the binary digits and translate them into electrical impulses, which in turn are transformed into physical reproductions of the images or sounds

Digital Recording

•      Digital recording does not have the physical limitations of analog

•      The CD or DVD will not wear out

•      There is no build up of noise to signal ratio as something gets copied and recopied and recopied

Computer History

•      17th century: Leibnitz develops
binary digits

•      19th century: Morse uses binary digits for telegraphic communication

•      1940: Aitkin builds mechanical gates to represent binary digits

•      mid-1940s: The Electric Numeric Integrater and Computer (ENIAC) is used to calculate the mathematics of artillery problems

•      ENIAC uses electronic gates; therefore the introduction of the transistor in 1948 allows the computer to be reduced

•      1970s: the introduction of the microprocessor

Internet History

•      The U.S. Department of Defense finances creation of ARPANet in 1969

•      Messages sent over ARPANet can be routed several different ways and are capable of sustaining enemy attack on communication centers

•      ARPANet becomes the Internet

•      Modem is a device that converts digital data and sends it out to another computer which converts it back

•      Commercial online networks such as AOL connect members

•      World Wide Web technology improves image/audio/text transfer over
the internet

Online Services

•      Freestanding Databases

•      Internet Service Providers (ISPs)

•      Types of connections

–  T3

–  T1

–  Cable modem

–  DSL

–  Dial up

Consumer Software

•      Entertainment

•      Education

•      Personal productivity

•      Leisure/reference

•      Internet/communication

Distribution Model

•      Distribution model is called

–  Original equipment manufacturer (OEM)

–  The OEM bundles together products from several companies into the unit sold to
the consumer

•      Distribution also occurs through

–  Consumer downloading software from
web sites

Web Sites

•      Reasons for existence of web sites

–  Image making

–  Click and mortar companies

–  Content sites

–  Sites can sell

•   Subscriptions

•   Advertisements

•   Both

Web Advertising

•      Banners

•      Pop-ups

•      Interstital pop-up

•      Superstital pop-up

•      Beyond the banner

Mass Customization

•      Tailors ads to individual needs
(through software technology)

•      Profiling

–   Is part of this software

•      Cookies

–   Record computer user’s choices in surfing the web

•      Data mining

–   Is the process of gathering and storing information about computer users

APPLICATION EXERCISE:   Ch. 17--FCC and New Media