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The Latest Development in Networks and Communication

1.0 Introduction|
The purpose of a computer communications network is to allow moving information from onepoint to another inside the network. The information could be stored on a device, such as apersonal computer in the network, it could be generated live outside the network, such as speech,or could be generated by a process on another piece of information, such as automatic salestransactions at the end of a business day. The device does not necessarily have to be a computer;it could be a hard disk, a camera or even a printer on the network. Due to a large variety ofinformation to be moved, and due to the fact that each type of information has its own conditionsfor intelligibility, the computer network has evolved into a highly complex system. Specializedknowledge from many areas of science and engineering goes into the design of networks. It ispractically impossible for a single area of science or engineering to be entirely responsible forthe design of all the components. Therefore, a study of computer networks branches into manyareas as we go up from fundamentals to the advanced levels.| 2.0 Mobile Computing|

2.1 Definition|
Using a computing device while in transit. Mobile computing implies wireless transmission, butwireless transmission does not necessarily imply mobile computing. Fixed wireless applications use satellites, radio systems and lasers to transmit between permanent objects such as buildings and towers.| 2.2 Specification,service, and frequencies of Mobile Computing| Apple iPhone| Specification| Service| Frequencies|

Processor: Marvell PXA310 Processor 624 MHz| Wireless connectivity: Bluetooth, Wi-Fi| Frequencies: 50 to 60 Hz| Display: 3.5” transflective TFT QVGA, 65K colours, 320 x 240 pixel touch screen with LED backlight| Dial Up Networking: * Wireless link to WAN thru Bluetooth enabled cell phone1 * Agnostic to WAN technology * Send/receive SMS messages| WLAN Frequancies: * 2,4000 to 2.4835 GHz 2,4465 to 2.4835 GHz (France)

2,4000 to 2,497 GHz (Japan)|
Memory: 64 MB SDRAM main memory for running applications, 256 MB flash ROM| Generic Object Exchange and Object Push: Exchange business cards, tasks, documents, appointments.| | Wireless Technologies: Integrated WLAN 802.11b/g, Bluetooth® 2.0 with EDR| Basic Printing Profile: Print to any HP Bluetooth enabled printer without the need for cables or specific print drivers| | Multimedia: HP Photosmart Mobile Software, Windows Media Player 10 Mobile| Personal Area Networking: Collaborate, chat, play games, exchange data Adhoc peer to peer networking| |

Audio:Integrated microphone, receiver, speaker and one 3.5 mm 4 pin stereo headphone jack| | | Memory Slots: SDIO high-capacity card slot - for memory expansion| | | Dimensions (WxDxH): 11.7 x 1.4 x 6.9 cm| | |

Aplication: Outlook 2002
Nevoware server,
Nevoware renderer,
Nevo backup,
HP Image Zone 3.5,
HP Image Transfer,
HP iPAQ Adobe Acrobat Reader,
Active Sync 3.7.1,
HP Mobile Printing| | |
3.0 Internet Technology and Service|
3.1 Voice Over Internet Protocol(VoIP)|
Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.Internet telephony refers to communications services voice, facsimile, and/or voice-messaging applications that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into...
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