| No one wants to be getting entangled in a maze | | | | mouses as well. A computer or electronic mouse |
| of wires while getting his gadgets. Everyone | | | | is basically a pointing device that detects motion in |
| wants to eliminate as much cords and wires as | | | | two dimensions relative to its position. The |
| possible from his gadgets as their elimination | | | | device's motion translates into a corresponding |
| greatly simplifies the connections between | | | | motion of a pointer on a display like a computer's |
| different devices. A keyboard that connects | | | | monitor. The mechanical mouse was invented by |
| wirelessly offers great convenience to the users. | | | | Stanford Research Institute in 1963. The first ball |
| One need not sit near one's computer to use it. | | | | mouse was developed in 1972 that used two |
| One can use the keyboard from a position one | | | | oppositely moving rollers to detect the motion of |
| feels is comfortable to him, like lying in the bed. | | | | the device. The wireless mouse was developed |
| The keyboard can be used with a computer | | | | during 1980s. |
| system that supports Bluetooth connectivity. | | | | A wireless mouse connects to the CPU of |
| Since the keyboard does not use any wires, it | | | | computers through Bluetooth technology. One |
| does not feature any ports for USB connections. | | | | need not keep the mouse near the computer's |
| Most such present day keyboards support two | | | | monitor to operate it. Nor does one need to |
| way transmissions of data through radio | | | | stretch his or her hand to reach it. These mouses |
| frequency (RF) for a distance of up to 100 ft. | | | | can work from a distance of up to 7 meters |
| The keyboards come especially handy in situations | | | | from the computer. Like other electronic gadgets, |
| where one's access to his or her computer is | | | | the device is susceptible to electrical and magnetic |
| restricted due to space constraints. But one | | | | interferences. If there is a lot of electromagnetic |
| needs to install a supporting software in his or her | | | | interference in the vicinity of the mouse, its |
| computer to use such keyboards. | | | | performance may be affected to a great extent. |
| Microsoft has released a new combination of | | | | The mouse detects its movement using photo |
| keyboard and mouse that connect without any | | | | diodes and light emitting diodes. Two versions of |
| wires with other devices. The combination is being | | | | this mouse were released in 1980. Current models |
| marketed under the brand name Wireless | | | | of the mouse use an optoelectronic sensor to |
| Entertainment Desktop 8000. The combination is | | | | picture its underlying surface. These mouses have |
| the computer industry's first backlit keyboard. The | | | | special purpose image processing chips embedded |
| gadget has specifically been designed for Media | | | | in them. The chip allows the mouse to detect its |
| Centre PCs and can be used with both Windows | | | | motion relative to a variety of surfaces. The |
| Vista and Windows XP operating systems. The | | | | mouse illuminates the surface that it tracks over |
| device features several buttons for use on Vista | | | | using a laser diode or a LED. The chip translates |
| operating system. Many users of conventional | | | | the movement of the mouse to a corresponding |
| keyboards may not know the exact functions of | | | | movement of a pointer on a display using an |
| these buttons. | | | | optical flow estimation algorithm. |
| The keyboard has several dedicated buttons for | | | | A wireless mouse is better than optical mouse. |
| multimedia control. The keyboard is backlit; it | | | | Some more variants of electronic mouse like a |
| means one can also use it in areas which have | | | | laser mouse and tactile mouse are also available in |
| dim or no light at all. There are many 'one touch' | | | | the markets. Some manufactures have also |
| multimedia keys on the keyboard. For example, | | | | developed mouses that have beenstylised to |
| one can open up an internet browser or play a | | | | sense gestures of the users. For example, a quick |
| DVD on his computer with just a single touch of a | | | | movement of the mouse in "X" motion would |
| multimedia key. Apple Inc. released its thinnest | | | | delete a picture in a drawing program. The |
| model of keyboard in August 2007 that can | | | | wireless keyboard and optical mouse have made |
| wirelessly connect to a computer. The keyboard | | | | it much comfortable to work on a computer |
| is specifically designed for use on the company's | | | | system. Most present day high end computers |
| Macintosh brand of computers. The device | | | | come equipped with wireless keyboards and |
| prevents accidental presses of Caps lock key. To | | | | optical mouses. The devices have made it possible |
| activate the Caps lock function, one has to press | | | | for users to easily interact with their computers |
| and hold the Caps lock key for a while. | | | | from a distance. |
| Let us now discuss some features of computer | | | | |