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

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