Wireless Technology & Web Searching

Assalamualaikum,

Pembelajaran pada minggu ini meliputi dua topik iaitu Wireless Technology & Web searching. Saya telah membuat beberapa rumusan berkaitan kedua-dua topik tersebut :

Wireless Technology :

• Used to send data through the airwaves between devices, instead of physical cable.
• Wireless technology is generally used for mobile IT equipment. It encompasses cellular telephones, personal digital assistants (PDA's), and wireless networking.
• Other examples of wireless technology: GPS units, garage door openers and or garage doors, wireless computer mice and keyboards, satellite television and cordless telephones.

Types of wireless network :

Wireless wide area networks (WWANs)

Wireless metropolitan area networks (WMANs)

Wireless local area networks (WLANs)

Wireless personal area networks (WPANs)

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Types of wireless technology :

Infra Red

Wireless local area networks (WLANs) , WiFi

Broadband wireless.

Bluetooth,

WiMax

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Web Searching :

• World Wide Web (or WWW, It is called a “web” because the interconnections between documents resemble a spider’s web).

• A software application that makes it easy and possible for nearly anyone to publish and browse hypertext documents on the Internet.

Types of web searching :

-Directories

-Search engines

-Meta-search engines

-Yellow pages

Web Browser :

• Can be defined as a software application used to locate and display web.

• Popular browser

–IE (Internet Explorer)

–Netscape

–Mozilla Firefox

–Safari

–Opera

–Mosaic and ask

How does searching work :

• User Interface–Allows you to type a query and displays the results.

• Searcher –The engine searches the database for matching your query.

• Evaluate–The engine assigns scores to the retrieved information.

• Gatherer–The component that travels the WEB, and collects information.

• Indexer –The engine that categorizes the data collected by the gatherer.

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