Tuesday 4 October 2011

DCP's 04/10/11

List of DCP's and their definitions




  1. HTTP- HTTPS stands for HyperText Transfer Protocol over SSL (Secure Socket Layer). It is a TCP/IP protocol used by Web servers to transfer and display Web content securely. The data transferred is encrypted so that it cannot be read by anyone except the recipient.
  2. WAP- Short for the Wireless Application Protocol, a secure specification that allows users to access information instantly via handheld wireless devices such as mobile phones, pagers, two-way radios, smartphones and communicators.
  3. GSM- Global systems for mobile communication is the dominant 2G/3G digital mobile phone standard for most of the world. It determines the way in which mobile phones communicate with the land-based network of towers. It's like a portable internet connection from anywhere in the world. 
  4. 3G- Third generation wireless service, designed to provide high data speeds, always-on data access, and greater voice capacity. The high data speeds, measured in Mbps, enable full motion video, high-speed internet access and video-conferencing.
  5. MMS- Multimedia Message Service. It is the successor of Short Message Service (SMS) that allows users to add multimedia content, such as sound, pictures, graphics, video clips, etc. to their text messages. 
  6. GPRS- General Packet Radio Service, which is a packet-switched technology that enables data communications over GSM network, often described as 2.5G (second and a half generation).
  7. BLUETOOTH- Bluetooth offers communication between Bluetooth-compatible devices. It is used for short-range connections between desktop and laptop computers, PDAs (like the Palm Pilot or Handspring Visor), digital cameras, scanners, cellular phones, and printers.
  8. ADSL- Digital subscriber line, ADSL is a type of DSL broadband communications technology used for connecting to the Internet. ADSL allows more data to be sent over existing copper telephone lines (POTS), when compared to traditional modem lines.
  9. BROADBAND- Broadband refers to telecommunication that provides multiple channels of data over a single communications medium, typically using some form of frequency or wave division multiplexing.
  10. VOIP-  Voice over internet protocol is a technology that allows telephone calls to be made over computer networks like the Internet. VoIP converts analog voice signals into digital data packets and supports real-time, two-way transmission of conversations using Internet Protocol (IP).

VOIP: Voice over internet protocol
Voice over internet protocol is a technology that allows telephone calls to be made over computer networks like the Internet. VoIP converts analog voice signals into digital data packets and supports real-time, two-way transmission of conversations using Internet Protocol (IP). Voip, is very often used with out even knowing, if you own a Pc or a games consoles and you use cross game or game chat then you are using voice over internet protocol. 

It's commonly used when in game consoles, computer gaming and cloud based gaming.
Skype and MSN messengers are good examples of Voip. You might not think about how much information is being processed and set around the world and sent back to you again in a similar.

Skype was released in  august 2003 and is now one of the most used formats of Voice over internet protocol with over 600 million accounts and over 36.1 billion minutes accumulated over the course of 2010.

 Skype uses a proprietary Internet telephony (VoIP) network called the Skype protocol. The protocol has not been made publicly available by Skype and official applications using the protocol are closed-source. Part of the Skype technology relies on the Global Index P2P protocol belonging to the Joltid Ltd. corporation. The main difference between Skype and standard VoIP clients is that Skype operates on a peer-to-peer model (originally based on the Kazaa software[98]), rather than the more usual client–server model (note that the very popular SIP model of VoIP is also peer-to-peer, but implementation generally requires registration with a server, as does Skype). 

http://www.skype.com/intl/en-gb/welcomeback/



Voip 02
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