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| Intro to IT |
| A blog made for my foundation course subject; Introduction to Information Technology. |
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| Computer Networks |
| Sunday, October 25, 2009 |
A node is a connection point that acts as either an end point or a redistribution point for data transmissions. This is because it has the ability to recognize and process transmissions to other nodes. A cellphone is an example of what can be considered a node.
A client is an application that accesses a remote service on another computer system through networking. For example, when a user is making requests for pages from servers all over the Web using a Web browser, then the user is making client requests. There are generally three types of clients which are "fat clients", "thin clients" and "hybrid clients".
A server is a program that fulfills the requests from client programs. For example, a server will deliver web pages that are requested by a client.
A Hub contains multiple ports and is one of the most commonly used networking hardware devices. They function as central connection points for local area networks (LAN). A port copies a packet without modifying it to all ports of the hub when it arrives at one port for transmission.
Network interface cards (NIC) is used to allow communication between computers over a computer network. It is a computer hardware specially designed for this purpose. The NIC assigns a MAC (media access control) which is a unique address to a machine. It allows the communication between computers using the MAC addresses.
Network Operating System (NOS) is an operating system. It allows a computer to fulfill requests from other computers for data and provide access to other resources through a network.
Distributed Processing is where a computer system uses more than one computer, or processor, to run an application. Distributed processing can also involve distributed databases. This is where data is stored across two or more computer systems. Distributed processing implies that a transaction will be completed when more than one processor is involved in processing.
A Host Computer is a computer that is connected to a network. It provides services such as functioning as a store-and-forward processor, a packet or message switch, and it is also used to develop software for execution on a target computer. Host computers range in a variety of sizes from something as small as a small microcomputer to batch mainframes or large time-sharing.
Network Manager is a software that is used for simplifying the use of computer networks. A network manager is also known as a network manager. It maintains the hardware and software that comprises a network. |
posted by Melissa @ 4:07 PM  |
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| About Me |
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Name: Melissa
Home: Selangor, Malaysia
About Me: Not much you need to know about me. I'm 20, Sabahan, and a female with a slight obsession with anime/manga, the colour pink and writing. Everything else, I'll let my posts speak for me.
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