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What is a computer network though? Computer network is a set of computers, printers and other tools that connect each other to share information and moving data through cables. Many users can print with the same printers or use the same software at the same time. A computer that stores the main data and plays role as data center is called Server while computers that are connected to network and take data from Server are called Workstations.

Various of Networks

1. Local Area Network (LAN)
A network that is limited by small area is commonly used by a small office in a building or school. Usually it is not far from 1 km square. Most LAN uses cables and LAN cards to connect one computer to another. Each computer connected to LAN has a different Internet Protocol Address. It is usually abbreviated as IP Address. LAN can also be set up through Wireless Technology which has speed from 10 to 10.000 Mbps. Wireless LAN can use infrared or radio frequency.

The advantages of LAN
a. Sharing files and printers is easy to do among computers.
b. The risk of losing the data caused by viruses can be reduced.
c. If there is one computer connected to modem, all of computers can access the internet.
d. There is much space in storage system (hard disk) to store documents.
e. Files stored in server can be accessed by client computers with an authorization. The authorization can be made according to company’s structure organization.

2. Metropolitan Area Network (MAN)
This kind of network usually has a bigger area than LAN or it can contain a network of some LAN that are connected one to another. The example of MAN is a network that is built in a wide complex of campus.

3. Wide Area Network (WAN)
WAN is a kind of network that is usually built through satellite or submarine cable technology. The example of WAN is a Bank network in a capital that can share information with a region bank network. They can also hold a meeting with video conference through Internet.

The advantages of WAN:
a. We can send files or documents through electronic mail (email) instead of sending documents manually through post office.
b. A network Server in Headquarter can be a data bank from branch office.
c. The data of a company can be updated everyday according to necessity.

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In 1999, we are still worried about the millennium bug when we surf the Internet, also facing the crisis of the Internet bubble burst. Instant decade later, the network has gone from awkward child, growth for the energetic and somewhat wayward youth.

In this decade, many new network technologies emerge, and now we have a bunch of browsers, mobile devices, HTML5,. NET, PHP5, Ruby on Ralis, Adobe AIR, jQuery, RSS, Gmail, Google Maps, WikiPedia, YouTube, Facebook, Twitter, iPhones, web services, and emerging network operating system.
Next, we will select the world’s greatest impact five network technologies in the past decade.

1. Firebug

For many people, it is strange to import a Firefox plug-ins, this is because most people do not know the impact of this small plug-in.

In 1999, for network developers, it is a nightmare if you want to provide tools to debug IE Javascript and CSS, so Firebug’s emergence as the savior of the developer.

It is no exaggeration to say that, without Firebug, the rise of the Web 2.0 times will be forced to delay. Read the rest of this entry »

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Businesses of all sizes are facing up to new challenges in recent times. Most likely your business is feeling the crunch due to the recent economic slump. Now add to the fact that you need to install, or upgrade existing network equipment and that crunch can be even tighter. Don’t worry though; leasing network technology may be the answer to your budget problems.
Information technology companies have long been the lead developers of new network systems, and their support systems. Leasing network technology is an idea that’s popping up right across the board. It works just like leasing, or renting a car. We all know that building and maintaining your own networks and subsystems can be quite expensive. This type of program allows you to circumvent those costs, and go with an option that’s more affordable for you.Unlike car rentals however, you will never find gum on the technology you lease, and in the off chance you do you might want to let the company know. When companies lease or rent their networking technologies they make sure the equipment is in top condition. After all this is your backbone for a while. Leasing and renting plans differ from place to place, and on what equipment you need.
Leasing network technology is something that’s handled with the greatest of care. Many companies offer monthly and yearly plans, some with upgrade options. Renting is essentially a monthly fee, and when you don’t need it anymore you return it. Leasing works just like an automobile, you pay a monthly fee for a set time and then are given the option to buy, or upgrade. Read the rest of this entry »

One of President Obama’s major initiatives will be to bring the US health care system into the 21st century. Our lagging health care infrastructure has lead to massive medical inefficiency, high premiums to the average citizen and an overall ‘leaky faucet’ effect that is contributing to the pool of problems our economy faces. The Obama administration has proposed a five year, near $100 billion dollar, initiative to fix our health care system through innovative new technology that includes creating electronic versions of all health records.

Although creating electronic health records is a huge step in ‘leveling up’ our health care system to meet modern day information technology standards, there is also the less celebrity concept of implementing high-tech network technology towards health care. It will be one thing for doctors and patients to have access to medical data, and another for them to communicate that data.

From the Cisco System’s blog:

“Web 2.0 technologies are beginning to change the practice of medicine,” says Lynne A. Dunbrack, program director for Health Industry Insights a market research and advisory firm in Framingham, MA. “We now have a significant number of doctors who grew up with the Internet, and they want to use online collaboration technology to keep up with the relentless demands for ever-greater speed and efficiency.” Read the rest of this entry »

World of technologies are utilizing the networking concept in various fields to obtain more secure and fast results. Networking technology is like a structured array of horizontal and vertical lines connection. Structured points are incorporated and assembled in net due to its various reasons. The various implemented technologies such as computer systems, telecommunication, mobile cell, information, television, radio, internet, intranet, extranet are adopting advance integrations.

Today’s computers are most powerful machines which can be configure and can apply networking in different environment with every situation. Networking technology is utilizing in the computing areas as a practice of linking computers altogether to sustain digital communication among each other. Local Area Network, Wide Area Network, Metropolitan Area Networks, Wireless Local Area Network, Intranet and extranet. The networking technology is including advanced client to client and server to client technology in computer network which helps chain of computers and operations to be interconnected at one place. Computer networking companies are manufacturing network devices where as the research and development on technologies are demanding hardware network and devices. Today wireless and virtual networkings are the hottest arrivals of networking technologies to provide the better global service. Read the rest of this entry »