Why Have A Computer Network?

February 8th, 2010 by admin No comments »



What exactly is a computer network? According to Wikipedia: “A computer network is two or more computers connected together using a telecommunication system for the purpose of communicating and sharing resources.” Arguably, network experts debate about this—they feel a computer network should be defined as a minimum of three or more computers connected together, not two.

Whether it’s a minimum of two or three computers to constitute a computer network, clearly the advantages outweigh the disadvantages. What are some of the advantages?

Let’s briefly cover the five advantages of computer networking. As Hutchinson & Sawyer brought out in Computers, Communications, & Information, the advantages of computer networks are: “sharing peripheral devices, sharing of programs and data, better communications, security of information, and access to databases.”

Sharing Peripheral Devices- Print sharing (where multiple users share the same printer) can cut operational costs. For example, large and expensive laser printers are used by multiple users within company networks. Providing a business has a network, large in-house printers can affordably be leased or purchased.

Sharing of Programs and Data- File sharing in the business environment is important, because it saves space, time, and paper. Digital files on a share drive are not only cost effective and convenient, but a company’s database is accessible to only authorized personnel and inaccessible to unauthorized personnel. Network-linked employees can share groupware and work together on shared projects. Purchasing network versions of software is yet another advantage of having a company network.

Better Communications- Schedules and task assignments can be easily shared and organized in a network. When emailing within a network, group settings and contact lists are easily kept up-to-date. Attaching scanned documents and emailing business communication is cheaper and easier than faxing information to another department at a different location.

Security of Information- When information is shared on a network and accidental data loss occurs, data recovery is much more likely to occur when working on a network. When shared information is stored on multiple computers and databases, it stands to reason that if a hard drive fails, others will have the shared information residing in another repository. Firewall appliances that are built for networks go far beyond what a consumer grade firewall can do.

Access to Databases- Typically, extensive databases (whether public or private) are shared on a network. Sophisticated databases have built-in parameters to protect the data from accidental overwrites or misuse by disgruntled employees.

As you can see, computer networks have many advantages and are understandably gaining popularity for small-medium sized businesses. It is no wonder why computer networks are notable for their cost-saving features and ease-of use for end-users worldwide. If you are concerned about your budget and need to set-up or improve your home or business computer network, call us at Genesis Global, Inc.: 1-800-908-9665. We can help you meet your networking equipment needs, as well as work with your financial budget in conjunction with getting you improved network communication devices.

Resource: Computers, Communications, & Information, 2000. McGraw-Hill Companies, Inc.

By: Deb Jensen

The Best Wireless Router For Your Home and Office Network

February 8th, 2010 by admin No comments »



With the continuous development of wireless technology, there has been a massive production of different types of wireless routers among the different manufacturers. With a wide range of wireless routers in the market, sometimes it is very difficult to choose which ones are the best.

With this in mind, we are going to look into the best routers available based on the tests and reviews of the expert’s point of view.

D-Link DIR-655 Xtreme Router

The D-Link DIR-655 Router is among the best wireless router in the market.. This router has the fastest speed with a wider range of signal compared with other wireless router. The advantage with this model is that it is backward compatible with any 802.11g and 802.11b capable devices. The D-Link Wireless Router will definitely work without any issues if you already have an existing network hardware installed. Interestingly, this model has been tested to work seamlessly with mixed networks.

The D-Link DIR-655 comes with 3 high frequency external antennas which make it capable of providing better signals and wider range. It also has a Gigabit Ethernet WAN port, LAN ports and USB ports. It has dual firewalls for added security. There are three encryption methods available to ensure a secure network connection.

D-Link Xtreme Wireless Router

The D-Link Xtreme Router is one of the most expensive routers in the market. It is pricey compared to other models since it is a dual band capable router. This router is ideal especially when there is loads of video streaming involved while maintaining a constant speed with other users in the network.

The D-Link router’s performance as well as its user interface is impressive. Although the price is expensive, it has surpassed its predecessors in terms of stability and performance.

Trendnet TEW-631BRP

The Trendnet TEW-631BRP 300 Mbps Wireless Router is one of the cheap routers. It is an alternative choice for a low budget wireless network project. Though with a low price, this wireless router does not compromise its performance and stability. This model is also bundled with a 3 year warranty which is a plus factor.

Trendnet TEW-631BRP

For online gaming, the Trendnet TEW-631BRP is the best choice. This wireless router is capable of providing the fastest performance even with the most demanding online games. The Trendnet TEW-631BRP comes with a user friendly interface which makes it relatively simple to setup.

Apple AirPort Extreme

A wireless router from Apple is the Apple AirPort Extreme which costs around $175. Though it is made by Apple, this router is compatible with Windows OS however this is best for Mac users. The Apple AirPort Extreme is a dual band capable router. This Apple router can function in 2.4GHz as well as 5.0GHz without interference.

Asus WL-500W

The Asus WL-500W has features which are not available with other wireless routers in the market. The Asus router is priced at $175. This router from Asus has built in firewalls, encryption, QoS as well as a print server.

Best of all, the Asus WL-500W comes with a built in FTP server, file server and Webcam server. It has the ability of downloading files on its own. This router is impressive with its server capability.

This router is also very easy to setup. It has a user friendly interface as well as a properly organized web interface for easy configuration.

By: David Urmann

Computer Network – Comprehensive View – Part 1

February 7th, 2010 by admin No comments »



Wireless networks enable people to communicate, access to applications and information without wires. That means access to the freedom of movement and the ability to expand the applications in different areas of the building, or near the city anywhere in the world. People, for example, while in the house search in the Internet, they can search in quiet places away from the noise of children or the rioters in front of the television presence of the entire family. Wireless networks allow people to interact with e-mail or surf the Internet from anywhere they like.

Wireless networks exist around us for many years, in fact, is the early forms of radio communications by the use of Native American Leather Ox for radio contact by putting it on the fire and remove it in waves for sending smoke signals to the other over great distances. Also the use of light pulses carrying information between the ships by Morse code which still form important contacts. kind of cellular telecommunications is common today for talks with some people across the world.

Introduction to concepts:

Wireless networks play a crucial role in people’s lives, whether at home or at work or in public areas. The objective is simple networks to provide wireless communication between users and information sources without the use of wires. It is necessary to address the basic concepts of wireless networks by understanding how to operate. This chapter provides a full definition of wireless networks and how users use them in a variety of applications.

wireless communications systems are for many but the characteristic feature of wireless networks, said it was investigating the communication between the computers, these devices include a Personal Digital Assistant (PDA) Personal Digital Assistant and laptops and PCs

Personal Computers (PCs), servers and printers.

The computer processor has memory and the appropriate means to achieve with a particular type of network. The traditional cell devices can be placed within the definition of a computer but the latest Mobile devices and even audio headset began in the integration of the network switches and power transformers account. The most of the electronic equipment was for wireless communications networks.

The networks rely on the wire or cable Fiber optic, wireless networks, the movement of information between computers. Information takes the form of an email, and web pages and database records, and a video or voice. The mobility of wireless networks, in most cases, data such as emails and files, we have shown progress in the performance of wireless networks through the addition of visual communications support to enable Video and Voice+.

The wireless network uses radio waves or light red medium of communication between users, and between servers and databases. This type of communication is no longer visible to the human eye, in addition to the real center of air visible to the user. Most manufacturers today make an integration between (NIC) Network Interface Card (NIC also reflects the HT) and the antenna in the computer. the NIC network card couldn’t seen by the user. It makes the computer the wireless mobile and easy to use.

By: Shrif S Kassem