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Technology
HardwareInternet & WWW
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Outline Hardware
System Unit CPU Memory Ports
Internet Internet services
WWW Types of Sites E-Commerce Search Operators
Internet Security
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Hardware
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The System Unit
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Motherboard
the main circuit board of the system unit
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CPU Central Processing Unit
“the Processor”
The brain of the computer
Characteristicso Manufacturer: Intel, AMD, etc.o Typeo Speed o Other• # Cores• # Threads
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Intel Laptop CPUs
http://www.intel.com/content/www/us/en/processor-comparison/compare-intel-processors.html
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Memory The system unit contains several types of
memory:
RAMo memory moduleo memory slots
o Contents:
Operating System & other system software
Application programs
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Memory: a logical view
Processor
InputDevices
StorageDevices
OutputDevices
Memory
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Memory Cache
ROMo Boot up instructions
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Ports and Connectors Know the Ports that you will need:
Types Quantity Location
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USB, Firewire, Bluetooth, MIDI, eSATA, etc
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Internet vs. WWW
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Internet Internet
an international ____________ of _______________
Packet switching network
Internet Backbone
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Internet Services World Wide Web (www) E-mail, mailing lists Instant messaging, chat rooms File Transfer Protocol (FTP) Newsgroups, message boards
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Web Address Domain Name
the text version of an IP addresso Top-level domaino .com, .gov, …
URL Uniform Resource
Locatoro Web addresso a unique address for a
webpage
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IP Address IP address
is a number that uniquely identifies each computer/device
Domain Name System
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Web Browser Files
Windows: Internet Explorer iPhone: Safari
Tools | Options | Delete Browsing History
Settings | Safari | Clear Cookies & Data
CookiesTemporary Internet Files CacheHistory
Firefox History| Clear Recent History
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Types of Web Sites Portal News Informational Business/Marketing Blog Wiki Online Social Network Educational Entertainment Advocacy Web Application Content Aggregator Personal
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Advanced Search Operators Improving your Search w/Advanced Search
OperatorsTask Search Operators
Individual keywords
Combined keywords
Synonyms
Exclude words
(Definitely) include words
Filter by SiteSite Name:Site Type:
Filter by File Type
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Internet Security SSL: Secure Sockets Layer Encryption Public key & Private Key Digital Certificate