So7.1 Ict Project Work Form 4

INTRODUCTION Communication is the way to transfer information from a sender, across a distance, to a receiver. Computer network is a system of peripheral devices and interconnected computers.

MOBILE COMPUTING DEFINITION Mobile computing is a strategic and versatile technology that increases information quality and accessibility, enhandle operational efficiency, and improves management effectiveness. SPECIFICATION, FREQUENCIES, AND SERVICES OF MOBILE COMPUTING PDA (Personal Digital Assistant) is a pocket computer composed of a processor, RAM (Random Access Memory), a touch sensitive screen, and network functions bundled in an extremely small compact case. It also called a pocket organizer. USES OF PDA: 1) To organize time, with visual or mechanical reminders. 2) Offer advanced multimedia tools for playing videos (in different formats, including DivX format), music (notably in mp3 format) and Flash animation. 3) Compatible, low cost and high performance GPS that helps with road navigation a using a map that continually displays the user’s location, speed and a visual representation of the road (eventually in 3D) with instructions both on-screen and from a synthesized voice. PDA FREQUENCY For geo-referencing, mapping and road navigation by plugging them into a geo-reference device(GPS, Global Positioning System).

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3G MOBILE PHONE With 3G mobile phone network operators can offer users with a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency.

3G SERVICES Wide-area wireless voice telephony, video calls, and broadband wireless data, all in a mobile environment.

INTERNET TECHNOLOGY AND SERVICES BLOG (a contraction of the term "Web log") is a Web site that usually maintained by an individual, with regular entries of commentary and descriptions of events, or other material such as graphics or video. VoIP (Voice-over-Internet protocol): 1) The actual transmission of voice (rather than the protocol implementing it). 2) A protocol optimized for the transmission of voice through the Internet or other packet-switched networks. 3) Referred to as IP telephony, Internet telephony, voice over broadband, broadband telephony, and broadband phone.

TYPES OF NETWORK WLAN (Wireless Local Area Network) WLAN is a wireless local area network, which is the linking of two or more computers or devices without using wires. It is used to spread-spectrum or OFDM modulation technology based on radio waves to enable communication between devices in a limited area, also known as the basic service set.

PAN (Personal Area Network) is a computer network used for communication among computer devices close to one person, including telephones and personal digital

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assistants.

VPN (Virtual Private Network) is a computer network in which some of the links between nodes are carried by open connections or virtual circuits in some larger network instead by physical wires for example the internet. WIMAX (Worldwide Interoperability for Microwave Access) It is also called WirelessMAN. WIMAX is a telecommunications technology that provides wireless data in a variety of ways, from point-to-point links to full mobile cellular type access.

CONCLUSION 1) Information is now made easy with availability of network communications. 2) In a bank for example network communication plays an important part keeping customers database for easy retrieval.

REFERENCES 1) Mohammad Farid Bin Azhar. 2) Mohammad Zulhusni Bin Aziz. 3) Parthibaruban A/L Kumar. 4) http://search.yahoo.com/search?p=computer+networks+and+communication

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5) http://en .wikipedia .org/wike/mobile_computing