History of Computers and the Internet - PowerPoint PPT Presentation


PPT – History of Computers and the Internet PowerPoint presentation | free to download - id: 7369cd-YTkzZ


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation

History of Computers and the Internet


300 BC: Invention of the Abacus in Babylonia 1632: Wilhelm Schickard invents first mechanical calculator. Never used beyond prototype. 1801: Joseph-Marie Jacquard ... – PowerPoint PPT presentation

Number of Views:14
Avg rating:3.0/5.0
Slides: 18
Provided by: Kathl177
Learn more at: http://www.clinton.edu


Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: History of Computers and the Internet

History of Computers and the Internet
History of Computers
  • 300 BC Invention of the Abacus in Babylonia
  • 1632 Wilhelm Schickard invents first mechanical
    calculator. Never used beyond prototype.
  • 1801 Joseph-Marie Jacquard invents programmable
    loom. Works by reading punch cards.
  • 1832 Charles Babbage begins work on the
    Analytical Engine. General use computer that used
    punch cards.

History of Computers Continued
  • 1941 Konrad Zuse develops first electronic
    general use calculator.
  • 1943 British government completes Colossus, a
    code breaking computer.
  • 1964 IBM unveils the IBM 360. Quickly becomes
    standard computer for institutions.

History of Computers Continued
  • 1968 Doug Engelbart develops a word processing
  • 1975 MITS Altair 8800 is featured on Popular
    Mechanics cover as the 1st personal computer
  • 1975 Bill Gates and Paul Allen write BASIC for
    Altair 8800. Represents beginning of Microsoft
  • 1979 First spreadsheet program, Visical, is
  • 1984 The Apple Macintosh is released.

The Internet
  • What is the Internet?
  • Millions of interconnected computers
  • A Network of Networks
  • A user at any one computer, with permission, can
    have access to any other computer
  • Networking 1st developed by the Advanced Research
    Projects Agency

History of the Internet
  • 1958 ARPA established
  • 1963 Time Sharing was developed
  • 1969 ARPANet goes online
  • 1979 Colleges begin developing internets between
    other schools
  • 1991 Tim Berners-Lee develops the WWW.
  • 1993 WWW shows a more then 300,000 growth in
    traffic in one year.

Ways to Connect to the Internet
  • Dial-up provided by an ISP (Internet Service
    Provider) though a modem
  • Satellite connections
  • Generally used in areas w/o DSL
  • DSL (Digital Subscriber Line) provides broadband
  • (70 times faster then Dial-up)
  • Wireless Internet Connections (varies)

the Internet vs. the WWW They are NOT the same!!
The Internet
  • Millions of computers
  • Many networks (or smaller internets)
  • Many varieties of languages used (protocols)
  • Millions of computers
  • Way of accessing information contained on the
  • Only uses HPPT protocol

The World Wide Web utilizes Web Browsers
(Internet Explorer, Firefox, etc.) to search web
pages that are linked though hyperlinks. Web
pages can contain graphics, sound, text and video
Searching the WWW
  • WWW searched using Web Browsers
  • ie Internet Explorer, Firefox, Safari
  • Three main ways
  • Address Bar
  • Hyperlinks
  • Search Engines

The Universal Resource Locator
  • Unique address for website or webpage. Entered in
    the address bar of a window.
  • Example http//www.yahoo.com
  • http written in the Hypertext Transfer
  • www. this site is located on the World Wide Web
  • yahoo this is the domain name (tells your
    computer which computer to request the file from)
  • .com extension (usually describes the type

Common URL Extensions
  • .com used for most commercial sites
  • .edu designates an educational website
  • .gov a site operated by the government
  • .org a website created by an organization
    (usually not for profit)
  • .net a site found on a particular network

Surfing the Internet
  • Searching the Internet can become very
    frustrating. Here are some steps that may
    increase your effectiveness at searching the
  • 1) Work out exactly what you want to know
  • Write down key words
  • Think of synonyms you could also search for
  • 2) Know your search engine of choice
  • 3) Understand Boolean Basics (if used by your
    search engine)
  • 4) Know how to evaluate an internet source

Protecting Yourself on the Internet
  • Downloading the transmission of a file on one
    computer to another computer
  • Malware (Malicious Software) any program, file,
    or code that performs malicious actions on the
    target system without the users express consent.
  • - Use and Update Anti-Virus
  • - Keep important info on a computer not
    connected to the internet, or on a computer that
    employees strong firewalls
  • - Do NOT open unknown e-mail

Protecting Yourself on the Internet
  • E-mail about as privet as a postcard. Very
    little protection through the Law
  • SPAM unsolicited e-mail
  • - prevent SPAM by deleting messages from
    unknown people
  • - do not give out e-mail on internet forms
  • - if receive messages from, asked to betaken
    off mailing list
  • http//www.onguardonline.gov/default.aspx

Types of Malware
  1. Spyware/Adware- place tracking cookies on your
    computer that track surfing habits
  2. Keylogger- programs that track every key stroke
    that is made on a certain computer
  3. Trojan Horse- appears to be a beneficial program,
    but once installed begins infecting other files.
    May also install a backdoor.
  4. Virus- is attached to another legitimate program.
    As that program runs, so does the virus.
  5. Worms- self-replicating program then sending
    copies of itself to other computers on the
    network without human intervention.

Warning Signs of a Computer Infection
  • Your computer starts running sluggishly.
  • It shuts down unexpectedly or crashes frequently.
  • It experiences memory problems or runs out of
    disc space.
  • Unusual files or directories appear on your
  • Strange messages appear on your screen.

  • http//www.pbs.org/nerds/timeline/network.html
    -brief description on development of the computer
    and internet
  • http//www.history.com/encyclopedia.do?articleId2
    12808 History Channel excellent overview the
    history of the internet
  • http//www.computerhistory.org/timeline/?category
    cmptr Year by Year overview of the development
    of the computer
  • http//www.computerhistory.org/internet_history/
    -Year by Year overview of the development of the
  • http//www.crunchers.bc.ca/library/history.html
    -History of the development of the internet
    written in very simple laymans terms
  • http//www.cnri.reston.va.us/what_is_internet.html
    -government developed document describing the
    development of the internet. Uses some complex
About PowerShow.com