|
|
| www.1001TopWords.com |
|
|
USB Hubs and Ports Explained
The USB standard has become the universal means of connection peripheral devices and equipment to the computer. Computers have either two or four USB port connectors. Each of these can support a large number of connections but to be able to attach more than two or four devices requires a multi-connection hub. There are many different types of hubs and this article seeks to explain some of the important considerations in selecting the best choice of hub for your system. The USB bus system in computers was introduced in 1996 and has gone through a number of developments and enhancements. It started out as USB 1 which was very slow and had many bugs. Version 1.1 brought a higher bandwidth of 12 MBits/second. The latest version of 2.0 gives a bandwidth of 480MBits/second and is fully backward compatible with USB 1 and 1.1.Link to a table showing differences between USB speeds (http://www.usb-products.com/usb-speed.aspx) Port Connections and Power Bandwidth Sharing Multiple Chip Hubs What this means in reality is that a multiple TT hub will provide much higher bandwidth per port when several devices are connected from one hub. Maximum Performance and choice of Where to connect a deviceIf you are after maximum performance for each of your USB 2 devices, each device should be plugged into its own USB port in the computer. Additional plug in cards can provide a vast number of USB ports for most needs. However, this situation might be going too far except for the most demanding of situations. Although several USB devices might be connected at the same time it is unlikely that they will all be in use together. A useful compromise is to plug small bandwidth devices together into a single hub. These would include: mice; keyboard; Speakers; little used devices. For devices that require a high bandwidth and are used often, direct connection in to a USB port is the best option. Devices would include: Flash memory drives; external disks; Web cams; Other frequently used devices. If you don't have sufficient ports then either more ports should be added with a plug-in card or a good quality hub with multiple transaction translators should be used. The devices placed on the hub are those that are used less often. Those devices placed directly on the port are used most often. Link to a selection flow chart that helps in selecting a hub (http://www.usb-products.com/USB-Hub-Selection.aspx) Access Considerations USB hubs tend to clutter up the area with cable connections and power lead. These naturally go out of sight if possible or behind the monitor. For mobile computers, a small compact hub can be obtained. These may have there own wind-in or tidy away cables. Powered and Passive Hubs Nigel Stephens heads an online business at http://www.usb-products.com supplying computer hardware products. Nigel's emphasis is in providing useful information so that consumers can make more informed choices.
|
|
|
|
RELATED ARTICLES
Would You Like An Extended Warranty With That? Should you buy an extended warranty with your laptop? You may not want to think about it now, but sooner or later, something is going to break down on your laptop. When it happens, the big question will be who gets stuck with the bill, you or the manufacturer. How to Avoid Getting Ripped-Off When You Purchase A New Printer It's no big secret that printer companies like HP and Brother are marketing their printers with the cost of refilling the cartridges in mind. Just the other week my family and I were at our hometown Wal-Mart and we were amazed at the price of a new printer. With joy we threw it in the cart never once thinking about the cost of refilling the contraption. Building A PC Many people simply go to the retail store and get sold to when it comes to computing equipment. You would be very surprised how easily you can pick up all the core components and assemble yourself or get a friend or family member in the know to do it for you. All the top brand PC manufacturers such as IBM, HP and Fujitsu Siemens offer you pre built PC's, Dell on the other hand will take your order and build to your own style. Off them all Dell will come across more flexible with the specification, however, building your own will not only save you many dollars but make you aware of just how much profit these guys are making. How To Refill Your Ink Cartridge Forget about emptying your wallets every time you see the blinking light. Quit worrying and start doing it yourself! It's an easy process that won't take you more than five minutes. Wireless Networking, Part 1: Capabilities and Hardware Wireless Networking, Part 1: Capabilities and Hardware How To Save Big Bucks On A Laptop Computer If you're a bargain shopper looking to get the most bang for your buck, you'll find no shortage of deals on the Internet. HIPPA Goes Mobile and Wireless for Hospitals and First Responders It appears we need to further streamline health care and HIPPA now in effect is quite a nightmare trying to comply with and implement without making a mistake and possibly being sued as the trial lawyers testing the law. The Malpractice insurance rates may go up again. On one hand you have the 'know your customer" laws and on the other you have "privacy rules." Ten Ways (plus 1) to Save on Printer Ink and Toner Cartridges Are you getting tired of the high cost of printing? You're not alone. Many consumers are up in arms. For example, they believe paying $22 per ounce for printer ink and $150 to $300 (or more) for a toner cartridge is way too much. A Review of Refurbished Toshiba Laptops Toshiba offers a few of their refurbished laptops in the "Clearance Store" of their official website toshibadirect.com. There you can purchase their laptops at 20-30% discounts, refurbished and as good as new. Toshiba inspects all returned and overstocked notebooks, replaces any defective parts, and resells them. You the consumer reap the benefits. Power and Your PC The power coming into a computer is the most critical component, and it may be one of the most overlooked. It is just taken for granted that it will always be there and working properly. A top of the line processor and ultra powerful video card do nothing if a system does not receive the ample, stable power it demands. Having quality components providing and regulating the power supplied to a computer is critical, and this brief overview looks at a few areas worth consideration. Survey of Both Past and Modern Printers Printers are on-line devices initially categorised as being either impact whereby a printing head assembly of some type is in physical contact with the paper, and non-impact where there is no mechanical contact with the paper. Emergency Response VSAT Internet Communications As 2005 begins, there are a number of products on the market which enable Emergency Response Units to have internet connectivity at remote disaster locations. The products marketed this year mount on vehicles from Fire Rescue units to most any type of truck or van, on specially designed trailers utilizing portable generators and in transportable boxes which can be shipped by UPS or Fed X overnight to most any location in the U.S. A response team's greatest challenge is to know enough about how this mobile satellite internet technology works and what the differences are in quality of transmission based on the equipment chosen and services provided by the Satellite Internet Provider. Printers: What Really Happens When You Hit ?Print? You just poured hours upon hours into a lengthy research paper. All that's left to do is print it out. And that's the easy part, right? Sure looks easy from the user perspective, but it's actually quite complicated. A series of critical processes kick off as soon as you kit the OK button. A Technical Introduction to Audio Cables What is so important about cables anyway? Where does technology come from? Ever wonder where all the cool gadgets come from? Ever wonder who gets to try this stuff out first? Usually the war machine scientists get it first, try it out and find an application by using it for destruction; an obvious outlet for the human species and our desire to blow things up. It then moves into the private sector for important projects like, Microwave Ovens, Nuclear Energy, aviation space travel, telecommunications, Internet (which of course Al gore created first?), even Hummers, the ultimate SUV was created to cruise troops around in, Helicopters, hydrofoils, you name it man it came from military first. Laptop Notebook ? Inexpensive Business Laptops Laptop Notebook ? Your Portable Office Surge Protector: A Simple Mechanism Description A surge protector [AKA surge suppressor] is an electrical plug-in device designed to distribute safe electrical voltages to other electrical or electronic devices. Surge protectors resemble power strips in appearance; however, they are more sophisticated and deliver a constant, continuous power supply. Preventing Tape Drive Failure Contrary to popular belief, tape drives are generally robust and reliable. However, there are three common mistakes that people make that dramatically increase the probability of tape drive failure. ATA vs SATA Hard Drives: ATA versus SATA How to Choose a New Hard Drive for Your Computer If you are running out of space on your computer or find that programs load a little slow, or that big files take a long time to open, it may be time for a new hard drive.
|
| © Athifea Distribution LLC - 2013 |