Wireless/Computer Networking

"In the world of computers, networking is the practice of linking two or more computing devices together for the purpose of sharing data. Networks are built with a mix of computer hardware and computer software".

BUSINESS NETWORKING

Business Networking for Entrepreneurs

Networking is an essential skill for most business people, but especially for entrepreneurs. The strong association between the entrepreneur as a person and his or her business demands that entrepreneurs get out into the world and create and maintain business relationships. Here are some tips and resources to help you improve your networking skills and extend your reach.


Business Network International

BNI is one of the oldest and certainly the world's largest business networking and referral organization. Over 2,700 chapters around the world offer their members an environment in which to develop personal relationships with other, non-competing businesspeople.

Why Business Plans Don't Get Funded

There are plenty of business plan resources available on the Web. Most of them focus on what to do, but many times the best lessons are learned from mistakes and seeing how to avoid them. Guest author Akira Hirai takes a look at the most common, easily avoidable mistakes that will keep investors from funding your project.

Packet Switching

Packet switching is a communications paradigm in which packets (discrete blocks of data) are routed between nodes over data links shared with other traffic. In each network node, packets are queued or buffered, resulting in variable delay. This contrasts with the other principal paradigm, circuit switching, which sets up a limited number of constant bit rate and constant delay connections between the nodes for their exclusive use for the duration of the communication.

• Packet mode or packet oriented communication may be utilized with or without a packet switch or router. Examples of the latter case are point-to-point data links, digital video and audio broadcasting or a shared physical medium, such as a bus network, ring network, or hub network.
• Packet mode communication is a statistical multiplexing technique, also known as a dynamic bandwidth allocation method, where a physical communication channel is divided into an arbitrary number of logical variable bit-rate channels or data streams.
• Each stream is divided into packets that normally are forwarded by a network node asynchronously in a first-come first-serve fashion. Alternatively, the packets may be forwarded according to some scheduling discipline for fair queuing or differentiated and/or guaranteed Quality of service.
• In case of a shared physical media, the packets may be delivered according to some packet-mode multiple access scheme.

Networks using packet switching can use datagrams or connectionless messages and/or virtual circuit switching (also known as connection oriented). Some connectionless protocols include Ethernet, UDP, IP. Some connection oriented protocols include TCP, Multiprotocol Label Switching (MPLS), Asynchronous Transfer Mode (ATM), X.25 and Frame relay.