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Technology

Technology. Hardware Internet & WWW. Outline. Hardware System Unit CPU Memory Ports Data Representation Internet vs. WWW Internet WWW Types ofSites E-Commerce. Hardware. The System Unit. Motherboard. the main circuit board of the system unit. CPU. Central Processing Unit

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Technology

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  1. Technology Hardware Internet & WWW

  2. Outline • Hardware • System Unit • CPU • Memory • Ports • Data Representation • Internet vs. WWW • Internet • WWW • Types ofSites • E-Commerce

  3. Hardware

  4. The System Unit

  5. Motherboard the main circuit board of the system unit

  6. CPU • Central Processing Unit • “the Processor” • The brain of the computer • Characteristics • Brands - Intel, AMD, etc. • Speed • HyperThreading • MultiProcessing

  7. Intel Laptop CPUs http://www.intel.com/content/www/us/en/processor-comparison/compare-intel-processors.html

  8. Memory • The system unit contains two types of memory: • Volatile & Non-Volatile Memory • RAM • memory module • memory slots • contents

  9. Memory: a logical view Processor Input Devices Output Devices Memory Storage Devices

  10. Memory • Cache • ROM • Boot up instructions

  11. Ports and Connectors • USB port • Firewire • Bluetooth • irDA • MIDI • eSATA

  12. Data Representation • Most computers are digital. Digital signals are in one of two states: on or off • The binary system uses two unique digits (0 and 1) • Coding Schemes • ASCII(American Standard Code for Information Interchange) • Unicode = 4 0 0 1 1 0 1 0 0 = A 0 1 0 0 0 0 0 1

  13. Internet vs. WWW

  14. Internet • Internet • an international ____________ of _______________ • Packet switching network • Internet Backbone

  15. Internet Services • World Wide Web (www) • E-mail, mailing lists • Instant messaging, chat rooms • File Transfer Protocol (FTP) • Newsgroups, message boards

  16. Web Address • Domain Name • the text version of an IP address • Top-level domain • .com, .gov, … • URL • Uniform Resource Locator • Web address • a unique address for a webpage

  17. IP Address • IP address • is a number that uniquely identifies each computer/device • Domain Name System Domain name: www.baylor.edu = IP Address: 129.62.15.253 • To lookup up other IP Addresses: • Open “Command Prompt” or type “cmd” • Type: nslookupdomain www.baylor.edu

  18. iPhone: Safari Web Browser Files • Cookies • Temporary Internet Files Cache • History Windows: Internet Explorer Tools | Options | Delete Browsing History Settings | Safari | Clear Cookies & Data

  19. Types of Web Sites • Portal • News • Informational • Business/Marketing • Blog • Wiki • Online Social Network • Educational • Entertainment • Advocacy • Web Application • Content Aggregator • Personal

  20. E-Commerce • E-commerce is a business transaction that occurs over an electronic network

  21. Search Tools • Search Engine • Finds information related to a specific topic • Improving your Search w/Advanced Search Operators

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