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09/06/2009

Wireless Keyboard and Optical Mouse - Making Computing More Convenient for the Users

Filed under: Hardware — Tags: , — kuru @ 6:37 am
Jayson Pablo asked:


No one wants to be getting entangled in a maze of wires while getting his gadgets. Everyone wants to eliminate as much cords and wires as possible from his gadgets as their elimination greatly simplifies the connections between different devices. A keyboard that connects wirelessly offers great convenience to the users. One need not sit near one’s computer to use it. One can use the keyboard from a position one feels is comfortable to him, like lying in the bed.

The keyboard can be used with a computer system that supports Bluetooth connectivity. Since the keyboard does not use any wires, it does not feature any ports for USB connections. Most such present day keyboards support two way transmissions of data through radio frequency (RF) for a distance of up to 100 ft. The keyboards come especially handy in situations where one’s access to his or her computer is restricted due to space constraints. But one needs to install a supporting software in his or her computer to use such keyboards.

Microsoft has released a new combination of keyboard and mouse that connect without any wires with other devices. The combination is being marketed under the brand name Wireless Entertainment Desktop 8000. The combination is the computer industry’s first backlit keyboard. The gadget has specifically been designed for Media Centre PCs and can be used with both Windows Vista and Windows XP operating systems. The device features several buttons for use on Vista operating system. Many users of conventional keyboards may not know the exact functions of these buttons.

The keyboard has several dedicated buttons for multimedia control. The keyboard is backlit; it means one can also use it in areas which have dim or no light at all. There are many ‘one touch’ multimedia keys on the keyboard. For example, one can open up an internet browser or play a DVD on his computer with just a single touch of a multimedia key. Apple Inc. released its thinnest model of keyboard in August 2007 that can wirelessly connect to a computer. The keyboard is specifically designed for use on the company’s Macintosh brand of computers. The device prevents accidental presses of Caps lock key. To activate the Caps lock function, one has to press and hold the Caps lock key for a while.

Let us now discuss some features of computer mouses as well. A computer or electronic mouse is basically a pointing device that detects motion in two dimensions relative to its position. The device’s motion translates into a corresponding motion of a pointer on a display like a computer’s monitor. The mechanical mouse was invented by Stanford Research Institute in 1963. The first ball mouse was developed in 1972 that used two oppositely moving rollers to detect the motion of the device. The wireless mouse was developed during 1980s.

A wireless mouse connects to the CPU of computers through Bluetooth technology. One need not keep the mouse near the computer’s monitor to operate it. Nor does one need to stretch his or her hand to reach it. These mouses can work from a distance of up to 7 meters from the computer. Like other electronic gadgets, the device is susceptible to electrical and magnetic interferences. If there is a lot of electromagnetic interference in the vicinity of the mouse, its performance may be affected to a great extent.

The mouse detects its movement using photo diodes and light emitting diodes. Two versions of this mouse were released in 1980. Current models of the mouse use an optoelectronic sensor to picture its underlying surface. These mouses have special purpose image processing chips embedded in them. The chip allows the mouse to detect its motion relative to a variety of surfaces. The mouse illuminates the surface that it tracks over using a laser diode or a LED. The chip translates the movement of the mouse to a corresponding movement of a pointer on a display using an optical flow estimation algorithm.

A wireless mouse is better than optical mouse. Some more variants of electronic mouse like a laser mouse and tactile mouse are also available in the markets. Some manufactures have also developed mouses that have beenstylised to sense gestures of the users. For example, a quick movement of the mouse in “X” motion would delete a picture in a drawing program. The wireless keyboard and optical mouse have made it much comfortable to work on a computer system. Most present day high end computers come equipped with wireless keyboards and optical mouses. The devices have made it possible for users to easily interact with their computers from a distance.



08/06/2009

Wireless Mouse Problem Troubleshooting

Filed under: Hardware — Tags: , — kuru @ 4:52 am
Molly Smith asked:


I have an IBM computer configured with a wireless keyboard, a wireless mouse and a wireless transmitter, and they all cooperate with me very well. But recently my mouse cursor has no response after I changed the battery. Firstly I don’t know what’s going on with it, but the thing I am sure is that my keyboard and mouse have no mechanical problems. Then I try to troubleshoot it.

Above all, I think I should check the installation of the battery. It has been installed correctly and the LED on this optical mouse is in red, so I can confirm that this device is working normally. However, why my mouse still has no response?

Next, with my keyboard, I go to StartControl PanelHardwareDevice ManagerMice and other pointing devices, and check my current pointing device to see if there is an exclamatory mark next to it. Again everything seems very normal there.

Third, I scrutinize all the connecting ports to make sure they are available and all cables have been inserted securely.

Finally, I press the button for wireless signal transmitting on the bottom of the keyboard, when the signal light on the keyboard begins to flicker I press the button for signal receiving on my mouse. After I perform this simple operation, my mouse begins to receive the wireless signal and work properly once again! So the cause of this failure is that I haven’t press the buttons on the keyboard and the mouse in an orderly way when I replace the battery.

Click here for a FREE SCAN to find out your mouse problems!



06/06/2009

New Small Business In Colchester, Essex Simply Tapes Ltd

Filed under: Small Business — Tags: , — kuru @ 4:58 am
Simply Tapes asked:


Simply Tapes Ltd, Launched in February 2008 supply and stock all kinds of Adhesive Tapes, both industrial and packaging.  Simplytapes specialise in custom printed tape.  Please visit our website at www.simplytapes.co.uk for competitive prices on all Packaging tapes, Vinyl Tapes, PVC Tapes, Masking Tapes, Double Sided Tapes, Foam Tapes, VHB Tapes, Tissue Tapes, Glazing Tapes, Magnetic Tape, Hook and Loop Tape and many more.

We also supply a comprehensive range of Industrial Packaging materials, such as Pallet Wrap, Single and Double Wall Corrugated Cartons, Jiffy Padded Bags, Bubble Wrap and Polystyrene.  In addition we offer a host of other packing room supplies, such as Strapping, Documents Wallets, Dispensers and a range of tools.

The business is managed by Chris Long and Richard Prior, who have over 20 years combined experience in the adhesive tapes market.  The pair have been recognised in a number of local business awards in recent years, including Shell Livewire.  The team are committed to assuring the best possible customer service at all times.

Simply Tapes Limited are based in Colchester, Essex at the thriving COLBEA centre in George Williams way.

Please call us on Freephone 0800 230 0395 , email us sales@simplytapes.co.uk or fax our sales office on 01206 561123 where a trained member of our team will be delighted to assist you.

Thank you for taking the time to read our article, please check out our website, and don’t hesitate in calling us, or emailing for more information about our growing new business. 

Kind Regards,

Simply Tapes Ltd.

 

Serving all your industrial needs.



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