Network Topologies

Star / hierarchical - Computers in a star topology are connected by cables to a hub. In this topology management of the network is made much easier (such as adding and removing devices), because of the central point. However because it is centralized more cable is required.

Bus - In bus topologies, all computers are connected to a single cable or "trunk or backbone", by a transceiver either directly or by using a short drop cable. All ends of the cable must be terminated, that is plugged into a device such as a computer or terminator. Most bus topologies use coax cables.

Mesh - A Mesh topology Provides each device with a point-to-point connection to every other device in the network. These are most commonly used in WAN's, which connect networks over telecommunication links. Mesh topologies use routers to determine the best path.

Ring - In a ring topology network computers are connected by a single loop of cable, the data signals travel around the loop in one direction, passing through each computer. Ring topology is an active topology because each computer repeats (boosts) the signal before passing it on to the next computer.

Wireless - A wireless network consists of wireless NICs and access points. NICs come in different models including PC Card, ISA, PCI, etc. access points act as wireless hubs to link multiple wireless NICs into a single subnet. access points also have at least one fixed Ethernet port to allow the wireless network to be bridged to a traditional wired Ethernet network, such as the organizations network infrastructure. Wireless and wired devices can coexist on the same network.

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Sony PSP Product Review and Honest Assessment

Apparently, Sony is hating life as Microsoft Xbox blows their doors off and sends Sony Play Station packing as they bolt into the future, taking their cake and eating it too. How did Microsoft pull this off, when everybody thought that they were a distant second? Apparently it just proves that if you bet against Bill Gates, you are going to lose, because Microsoft with its Xbox shows no mercy for Sony.

The Sony Play Station Portable is the best that they have right now in the portable option category, but it is really not very good and after playing something like the Xbox at home, taking the Sony PSP around would just make you look like an underachiever with your friends. The Sony PSP for the best new innovation in gaming consoles ranks second to the absolute overkill of Xbox and unfortunately Sony's best in innovation in 2005, well their best is second best and in the contest for the best gaming console, second place may as well be last place.

As a matter of fact one has to wonder why anyone would buy a Sony PSP when you can wait until you get back home and play the real thing on a far superior product like the Xbox. The Sony PSP, well it is just boring after having it all on an Xbox. One has to seriously doubt if Sony will ever catch up now, either with its mobile technology or the home gaming console. Even with heavy discounting; Sony is in some serious hot water with gammers, as their most loyal make the switch to Xbox without looking back, think on this in 2006.

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Finding a Great Car Accessory

A car accessory is something you add to your car to make it look better and to add some style. Many people want a cool car accessory to accent their car. A car accessory can make your car look great. A car accessory can help you to personalize your car. Whatever your reason may be for purchasing a car accessory, you will surely enjoy doing it.

A car accessory can often be pricy. But before we get into that kind of a car accessory, let's start with the cheaper ones. A cheap car accessory that many people enjoy is stickers. This car accessory can be a funny statement, a social cause, or an achievement. Another inexpensive car accessory is bobble heads. They are often of famous people or silly animals. These are always funny to look at.

A car accessory is sometimes a necessary thing. An example of this kind of a car accessory is floor mats. Floor mats can either be plain colored or have a catchy design. Another often needed car accessory is air fresheners. As you know, cars can get smelly. Many people find this car accessory to be a blessing.

Now we will move on to the more expensive kind of car accessory. This type of car accessory is often electronic in nature. An electronic car accessory can be a blacklight, neon headlights, CD player, or even a dvd player to keep the kids quiet while you are trying top drive. A similar car accessory would be to add a playstation or an Xbox to your car with a television unit to play on. This car accessory is not recommended because it can be ever so distracting to the driver.

Another expensive, yet sometimes necessary car accessory is an in dash GPS (global positioning system). A GPS helps many drivers get to and from various locations. It is kind of like an onboard automated map. A GPS can cost you between $500 and $1500 so you must decide on if you really need it. Another example of an expensive car accessory is a radar detector. This helps drivers know when a police officer may be nearby looking for speeding cars. A radar detector alerts you so you can slow down and avoid a speeding ticket. A radar detector is not really needed unless you are the type of person who likes to speed.

Whether you want a car accessory to better personalize your car or to help you avoid speeding tickets, you will surely have a bunch to choose from. Take your time and seek out the one that is best for you. There are a lot of places to go for car accessories. Have fun and enjoy yourself while you shop.

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