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Unformatted text preview: Post Test #3 info. Computers:-Analog- information stored and transmitted in continuous stream.- Digital- information stored and transmitted in discontinuous on/off pulses. Orrery : an analog computer, mid to late 1800's, shows alignments of planets Binary Code : dx encoding on film, upc code on film First all electronic computer: Eniac Located: U of Pennsylvania - Van Pelt Library Put to use: 1946 Operations per Second: 5000 Significance of EDVAC of U of Penn: First binary computer, and first to use stored program concept What did John Von Nueman contribute to computers? : stored program concept (computer instructions stored along with numbers to be processed) How did Paul Allen and Bill Gates get started in the computer business? : Wrote BASIC (beginners all purpose symbolic instruction code) for the Altair 8800 in the 1960's- called their company Microsoft Largest and fastest computers: Supercomputers WYSIWYG : What You See Is What You Get What is HTML and what is it used for? : Hypertext Markup Language, used to create webpages Types of delivery systems used to communicate electronically:-Packet Switching: how information gets from one computer to another through the internet- Geosynchronous Satellites: satellite that rotates with the earth to transfer information- Microwave : point to point communication- Coaxial Cable : Broadband internet- Fiber Optics : cable made of glass- Wireless : internet access Computers Impact on Society:-Parasocial Interaction...
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- Spring '08