Understanding the Components of a Home Network

By: Manbeer Singh

Home networks are becoming more common. People want to be able to share a single broadband Internet connection to several computers in the house. There are many different devices that you can use to make up your home network. If you have never heard network terminology device names like router, hub, etc may seem confusing.

The purpose of most of these devices is to control how the network passes around information. This information is sent in the form of “packets”. I will refer to the term packet several times in this article. It simply means the data that the network is transporting. I will now explain the purpose of the major components of a home network.

What is a Hub

A hub is a device that has several Ethernet ports on the back of the device. One of these ports will likely be labeled ?Uplink?. This port allows you to connect multiple hubs together, if you run out of ports on your hub. If you do not have an uplink port on your hub, the hub cannot be easily extended if you run out of ports.

A hub is a device that attaches multiple computers on an Ethernet network. If you have a number different computers that you want to connect together, you could connect each to the hub. Any packet that is sent out by any computer on the network will immediately be transmitted to the other computers. Each computer will determine if the packet was really intended for it, and filter out packets that were intended for other computers.

You really should not use a hub in a modern home network. You should always use a switch in place of a hub. Switches will be discussed in the next section.

What is a Switch

A switch is a device that has several Ethernet ports on the back of the device. One of these ports will likely be labeled ?Uplink?. This port allows you to connect multiple switches together, if you run out of ports on your switch. If you do not have an uplink port on your switch, the switch cannot be easily extended if you run out of ports.

A switch serves the same function as a hub. It allows you to connect multiple computers together, so that they can exchange packets. However, a switch is much more efficient than a hub. A switch will only send Ethernet packets to the computer that the packet was intended for. Because of this you should always use a switch in place of a hub.

What is a Router

A router is a device that has several Ethernet ports on the back of the device. One of the connectors will be labeled WAN. You should connect the WAN port to the Ethernet connection on a broadband source, such as a cable or DSL modem. The other ports on the router can be connected other computers or switches/hubs that will share the WAN connection.

Routers allow you to share your broadband connection with multiple computers in your house. Rather than connecting your computer directly into your cable or DSL modem you connect the router to the cable or DSL modem. Now any computer that you connect to the router will have access to the Internet.

If you run out of ports on your router you can always connect an additional switch to the router. To connect a switch to a router simply connects the switch?s “uplink” port to one of the routers Ethernet ports. Of course, don?t connect to the router?s WAN port. The WAN port should only be connected to something such as a cable or DSL router.

Some routers come with additional features installed. Most routers also include a firewall. Firewalls are discussed in the next section. Some routers will also include a wireless access point (WAP). The WAP allows you to use wireless devices, such as wireless laptops, with the Internet.

What is a Firewall

A firewall controls traffic flow between your network and the Internet.

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Windows XP SP2 or higher includes a software firewall. A hardware firewall is included with most routers.

A firewall is a very good idea. It can protect you from inbound virus attempts. By inbound virus attempt I mean other computers that will connect to your computer and attempt to infect your computer. You do not want to run a computer directly connected to the Internet, without a firewall. There are just too many other computers out there that can connect and infect you without you even noticing.

What is a Network Attached Storage (NAS)

A network attached storage device is a device that allows a hard drive to be shared across the network. This hard drive is NOT attached to any of your computers. It is simply made available by the NAS. This can be a convent way to add a hard drive that can be accessed by several computers on your network. The other common way to add a network hard drive is to simply share a folder on one of your computers. However, with the NAS, you do not need to keep one of your computers on at all times.

There are two types of NAS commonly available. The first type comes with a build in hard drive. The second accepts a USB or Fire wire external hard drive. The advantage to using a USB or Fire wire hard drive is that you can upgrade the hard drive if it ever were to become too small.

What is a Print Server

Just like you can buy a device to allow you to share a hard drive, you can do the same with a printer. A print server connects directly to your printer. Your printer is then shared to all of your computers on the network. This is convent because you do not need to leave the printer hooked to a computer, which must be turned on to print.

Conclusions

As you can see there are many different components. Perhaps the final component that I ave yet to mention is the cable. These components are connected together with CAT5 Ethernet cable.

Article Source:
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Beware of Hidden Costs When Purchasing Mobile Home Park Software

By: Jill Shaffer

If you are considering computer software to manage your mobile home park, make sure you are aware of all possible hidden costs. Read about some common ways that software companies can add expensive features and technical support options to make you spend more than you bargained for.

After finding the perfect software solution for your mobile home business, you may unfortunately discover that there are extra modules and services needed to run the software. For example:

Updates:

Many software vendors charge additional for updates to the mobile home park software that are released in the future. These updates can include new features as well as ?bug fixes.? Charging for these updates is standard practice, but you can find companies that provide these updates for free. Some companies force the user to purchase updates even if their software is running fine. They force the issue by refusing to do technical support for the user unless they have purchased the latest version. A more reasonable approach is to provide the technical support and, if it is discovered that a problem the user is experiencing has been fixed in a later version, to notify the user. The user can make their own decision whether they want to find a work-around for the problem or to go ahead with the purchase of the corrected and newest version of the mobile home park software.

Additional Feature Modules:

Many software companies have a standard price, but additional and often necessary features cost extra and can really increase the price. Look for software which includes all of the features you need, or make sure to add up the additional costs when you are making price comparisons.

Technical Support:

Technical support represents a very important ongoing relationship with the software vendor. Most companies offer a user manual included with the software but this is often not enough when you are confused about how to use the software or are experiencing an error in the software. It is important that the vendor has free or low cost options for technical support for those with a quick question or error to report. For example, there may be a free user forum or free email technical support. All software has occasional errors. A vendor that allows you to report errors without penalizing you by charging for reporting the error is a must.

It is important that the software vendor offer some type of telephone support for those who don?t want to search the manual. For those who need to get back to business quickly and want to be able to pick up the phone for quick answers, a telephone support plan is useful. Telephone support is almost always a paid option. However, the cost of this telephone support can reflect on the software program. Software vendors must maintain some sort of recurring revenue from their customers in order to stay in business, and to pay their trained technical support representatives.

However, if the telephone support is overly expensive, it may suggest that the software is full of errors and requires a lot of hours spent working with technical support.

Software Supplies:

Often a software vendor will add features into the software which require you to purchase more products from them. For example, a software program that offers a check printing feature may require that you use their printing company to purchase check forms that are compatible with the software?s banking feature. Other companies will also offer an alternative and less expensive option, such as the option to use checks compatible with QuickBooks or other software for which it is easy and inexpensive to purchase check stock.

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For example, there may be a credit card processing service that will process payments for you. Often the software company itself receives a portion of the user?s cost for each use of the feature. You need to decide if you can get the feature less expensively elsewhere or if the added cost is worth the convenience of the feature interacting seamlessly with your software.

Watch for hidden costs when you are considering a purchase of new Mobile Home Park Software. Find Park Sidekick software with no hidden costs, specifically designed for management of mobile home parks at http://www.ParkSidekick.com

Article Source:
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