by Dinesh Thakur Category: Services and Applications

E-mail is short for electronic mail, mail you can send or receive directly on your computer. Yes, with e-mail people can actually write you letters and send them to your computer, and you can turn on your computer and go pick up your mail whenever it's convenient. Many a love affair has begun through e-mail. I know. It's really fun, too. And useful, of course. E-mail can be a verb too, as in "I e-mailed my lover a letter from Lhasa."



 
by Dinesh Thakur Category: Services and Applications

An intranet is a private computer network that uses Internet Protocol technologies to securely share any part of an organization's information or operational systems within that organization. The term is used in contrast tointernet,a network between organizations, and instead refers to a network within an organization.



 
by Dinesh Thakur Category: Services and Applications

The Simple Network Management Protocol (SNMP) is a framework for managing devices in an internet using the TCP/IP protocol suite. It provides a set of fundamental operations for monitoring and maintaining an internet.



 
by Dinesh Thakur Category: Services and Applications

Dynamic Host Configuration Protocol (DHCP) is a protocol used by networked devices or clients to obtain the parameters necessary for operationin an Internet Protocol network. This protocol reduces system administration workload, allowing devices to be added to the network with little or no manual configurations. Dynamic Host Configuration Protocol is a way to administrator network parameter assignment from a single DHCP server, or a group of DHCP servers arranged in a fault-tolerant manner. Even in small networks,



 
by Dinesh Thakur Category: Services and Applications

Bootstrap Protocol (BOOTP) : The Bootstrap Protocol (BOOTP) enables a client workstation to initialize with a minimal IP stack and request its IP address, a gateway address, and the address of a name server from a BOOTP server.

 
by Dinesh Thakur Category: Services and Applications

Network Address Translation (NAT) is the process where a network device, usually a firewall, assigns a public address to a computer (or group of computers) inside a private network. The main use of NAT is to limit the number of public IP addresses an organization or company must use, for both economy and security purposes.



 
by Dinesh Thakur Category: Services and Applications

Low cost business terminals with small antennas (generally less than 2 metres in diameter) are often termed Very Small Aperture Terminals (VSATs). These are usually perceived as being two way data terminals, though strictly speaking many of the systems used for data broadcast are really one-way VSATs. Taking the USA as an example, approximately half of all installed VSATs are only used for one way data links.

 
by Dinesh Thakur Category: Services and Applications

Cellular radio has other popular names as cellular mobile or mobile phone. Radio is basically a device, which uses receiver and transmitter. Wireless communication can also be carried out without using radio. The interference caused by high power line to radio transmission is also an example of wireless communication though it is termed as noise. Inductive and conductive circuits and devices can communicate wirelessly for limited distance with less reliability and implementation problem. Therefore, these techniques cannot be termed as radio transmission.

 
by Dinesh Thakur Category: Services and Applications

• Trivial file transfer protocol (TFTP) is suited for those applications that do not require complex procedures of FTP and do not have enough resources (RAM, ROM) for this purpose.

• Typical applications of TFTP include loading the image on diskless machine and upgrading the operating system in network devices such as routers.



 
by Dinesh Thakur Category: Services and Applications

URL stands for Uniform Resource Locator that identifies a particular Internet resource. URL help the user to locate web page, gopher service, library catalog and image or text file locations. URLs are the standard addressing system of the www. A complete URL provides the web client with all the information it needs to contact a server and make a request for information. URLs are divided into three basic parts:



 
by Dinesh Thakur Category: Services and Applications

This section presents an overview of the most common protocols used for TCP/IP communication. The discussion focuses on the nature of these applications and the purpose they serve.



 
by Dinesh Thakur Category: Services and Applications

The generic GSM network architecture is composed of three subsystems as the Radio Subsystem (RSS), the network and Switching Subsystem (NSS) and the Operation Subsystem (OSS). The subscriber carries the Mobile Station, which is part or RSS.

 
by Dinesh Thakur Category: Services and Applications

"VOIP - Short for Voice Over Internet Protocol, a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions.

 
by Dinesh Thakur Category: Services and Applications

In the beginning around 1980s, analog cellular telephone systems were developing in Europe and each country was developing its own system and thus making them confined within their country boundaries. Later on, the need for an European public land mobile system was realized. In 1982, the Conference of European Posts and Telegraphs (CEPT),formed a study group called the Groupe Special Mobile (GSM) to develop a pan-European standard With the objectives of providing good subjective speech quality, support for international roaming etc. The proposed system was expected to meet certain criteria as mentioned below:

 
by Dinesh Thakur Category: Services and Applications

SSL (Secure Socket Layer) is a network layer security protocol which is responsible for ensuring security of data or messages in transit through http, ldap, smtp, imap or pop3 application layers and practically ensures a reliable end-to-end secure and authenticated connection between the client and the server over the open Internet.



 
by Dinesh Thakur Category: Services and Applications

IMAP stands for Interactive Mail Access Protocol and it is defined in RFC 1064. IMAP version 4 is mail access protocol that is similar to POP3. IMAP has more features an4 is more powerful and complex as compared to POP3. It allows a client to access and manipulate e-mails and mailboxes. IMAP runs on the well-known TCP port 143. IMAP was devised to overcome the limitations ofPOP3.



 
by Dinesh Thakur Category: Services and Applications

A web server is a computer programs that delivers (serves) content, such as Web pages, using the Hypertext Transfer Protocol (HTTP), over the World Wide Web. The term Web server can also refer to the computer or virtual machine running the program. In large commercial deployments, a server computer running a Web server can be rack-mounted in a server rack or cabinet with other servers to' operate a Web farm.



 
by Dinesh Thakur Category: Services and Applications

The Network News Transfer Protocol is an Internet application protocol used for transporting Usenet news articles (Netnews) between news servers and for reading and posting articles by end user client applications. Brian Kantor of the University of California, San Diego and Phil Lapsley of the University of California, Berkeley authored RFC 977, the specification for the Network News Transfer Protocol, in March 1986. Other contributors included Stan Barber from the Baylor College of Medicine and Erik Fair of Apple Computer.



 
by Dinesh Thakur Category: Services and Applications

UUCP is derived from Unix-to-Unix copy. It is a standard UNIX utility that manages the transmission of information between UNIX systems, using serial connections and regular telephone lines. The Communications package was developed at Bell Laboratory by Mile Lesk in the mid-1970s for serial communications between in-house UNIX systems.



 
by Dinesh Thakur Category: Services and Applications

ADSL:-Asymmetric Digital Subscriber Line (ADSL): A BROADBAND digital telecommunications (xDSL) technology that can operate over existing copper telephone lines, and is one of the technologies vying to replace ISDN. ADSL uses an upgraded phone line, all-digital technology, and supports simultaneous Internet browsing and phone use. ADSL is a much newer technology.

 

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About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.