Computer Hardware and Networking

Archive for November, 2009

You may easily choose laptops or notebooks since these can be more beneficial than the desktop computers you see often. After all, you can just be one of whom the surveys say prefer it to the hulking desktop types. Good news for you is that, its manufacturers are trying to advance its technology further to acquire more power and eventually, ease desktop computers out of the market.

Notebooks portability may be what attracts you to it. These are always designed with carrying convenience in mind, which is why these are always small and lightweight. The smallest ones commonly being sold have screens below 7 inches and most of these weigh less than 6 pounds. You can also have those bigger and more powerful ones with screens 17 inch wide.

The development of very small but powerful microchips has made these items a reality. Its flat-panel screens have VGA resolutions, which can provide notebooks much sharper display. However, desktop computers monitors may have better refresh speed although its pictures are not as sharp.

Notebooks depend on batteries for power. However, its batteries needed to be recharged after three hours of straight use. You can lengthen the batteries life, though, by adjusting the power configuration to its minimum. The batteries can function for more than the average length of time but some system applications cannot be used while such configuration is set.

You can choose a type just to replace desktop computers. It can equal a desktop PC’s powerful functions and capabilities. It can have the same graphics and audio features. You will find this larger and heftier. However, if you are not carrying this around too often, this is a good choice.

If you travel a lot, netbooks may be worth considering. Netbooks are notebooks designed for maximum convenience in mobility, since these are smaller and lighter than the ordinary laptop.

With the help of USB, users got the flexibility to operate secondary devices like keyboards, MP3 players, digital cameras, and hard disk drives, as if they are locally connected. USB was introduced in 1995. It was originally designed to simplify consumer control on secondary devices and transferred data. Before introducing the USB, the main interfaces used were parallel and serial connectors both using different procedure to transfer data and control secondary devices. These connectors were frequently ham-fisted and required lining up several pins to fit the holes in the end of the connectors. Serial connector’s offer slower transfer rates in comparison to USB connectors.

According to the USB specification, you can use passive extension cables for distances up to 16 feet. Beyond sixteen feet, you need a USB extension cable that will help to boost the signal in order to avoid losing data or damaging USB equipment.

USB signals can be extended with the help of many other ways such as USB extension cables, USB extenders, and also by using wireless technology. A USB extension cord comes in various lengths and thickness and service duties. The standard lengths of USB cables are 5m, but there are number of ways to extent the USB cables. Probably, the most common form of extending a USB is by using USB extension cables. USB extension cables are very useful for extending device signals over shorter distances and are normally up to around 3m in length. USB extension cables are very useful for their ‘plug and play’ capability. This is the best advantage a user can get while using many smaller devices like MP3 players and web cams and many other devices. Most extension cables can be chained so several can be added to one another to create a longer extension.

USB extension cables are not only perfect for smaller devices such as MP3 players, memory sticks, and Bluetooth dongles, but it is also useful for larger devices like printers, scanners etc. An USB extension device allows extensions of USB 1.1 and 2.0 devices beyond the 5 meter USB connection limit. With the help of these devices, the extension can range from 100 meters up to 10 kms, but it depends on the channel which is used for connection.

These USB extension devices combine the speed and security while transferring any kind of confidential data. With the help of these USB extension cables users can control very easily low as well as high speed USB devices in comparison to other devices.

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