are the input devices, for those who enter commands or select the task you want the computer to perform.
can find on the market either individually or together in a kit.
can find on the market either individually or together in a kit.
The keyboards itself are all virtually identical in their functionality, some difference to have multimedia buttons, but in general are all very similar, except those used for laptop (and also the ultra-fine for normal PC) to to be much finer uses a form of X less robust than a standard keyboard for your desktop computer.
In the case of mice we find significant differences the user of each other, so that we could differentiate according to these models: Ball
: are the first design today can be found with PS / 2 or USB, and incorporating a wheel slip, the method operation is that a ball placed under the mouse turns the X and Y and the computer translates it to make the cursor move across the screen, said ball needs to be cleaned of dust and dirt so that the movement is optimal. TrackBall
: similar to above but the ball (usually larger), is of a different material and placed in the top, so that the user moves the mouse but only moves the ball, this mouse is underway, and is where is effective for users who design or work with CAD programs, allowing them to operate more easily and quickly. Optical
: they differ from above by the absence of the ball, if it works differently. It consists of an optical sensor that records every movement of the sliding on the screen. The advantage of these mice, plus it is no longer necessary maintenance of the ball, is that the movement is much more accurate and consistent. Not all optical mice are the same quality as the operation of an optical mouse is similar to a digital camera ie, the mouse is like to photograph the surface on which it moves, it is noteworthy that there are optical mice different resolutions measured in pixels per inch (dpi), so the higher this measure will be necessary and progressive mouse movement. Another thing to keep in mind about optical mice is that due to its operation based on reflection of light is not able to move on glass surfaces, nor is it able to move freely in my dark or black surfaces and white surfaces, so even if they do not need a mat and ball mice to move freely, whether it is advisable to avoid slipping nonprogressive a specific use for them if we notice the movement in the area for which it is not right move. Laser
: a new technology, changes in the optical, but more expensive laser sensor which is faster and more accurate. Something important to take into account the way it works is that the laser does not emit visible light, ie to turn the mouse does not see a beam of red light in optical mice.
addition to differences in performance technology, another of the differences of mice with others is that they are wired or wireless incorporated within the wireless found these 2: RF
: the keyboard and / or mouse transmit data via radio frequency to a receiver connected to the computer by PS / 2 or USB. Every day lowest price, but with the drawback that the distance that can be placed is small (about 2mm at most, which in many cases do not reach) and the possible interference that may affect their operation.
This is important the quality and / or brand of the group in question, as there are in the market sets a very low cost wireless which can be quite problematic and easily lost in the same frequency so that the receiving / shipping usually has a greater delay in other higher-end models (Trust, Labtec and Rainbow are eg some of the fairly widespread brands whose qualities are usually low-end and Logitech and Microsoft are usually sets of higher quality and less problematic)
Bluetooth: This technology is newer, so it is normal that keyboard are implementing high-end and higher price than other models, but it will be the standard here at once, thanks to its versatility. In this case the keyboard and / or mouse transmits data to a Bluetooth device that can be plugged into the computer in many ways and can order to deceive the signals of more Bluetooth devices at a higher speed than radio, with less possibility interference and greater range (between 10 and 100 meters in open plan, depending on the Bluetooth technology).
In the case of mice we find significant differences the user of each other, so that we could differentiate according to these models: Ball
: are the first design today can be found with PS / 2 or USB, and incorporating a wheel slip, the method operation is that a ball placed under the mouse turns the X and Y and the computer translates it to make the cursor move across the screen, said ball needs to be cleaned of dust and dirt so that the movement is optimal. TrackBall
: similar to above but the ball (usually larger), is of a different material and placed in the top, so that the user moves the mouse but only moves the ball, this mouse is underway, and is where is effective for users who design or work with CAD programs, allowing them to operate more easily and quickly. Optical
: they differ from above by the absence of the ball, if it works differently. It consists of an optical sensor that records every movement of the sliding on the screen. The advantage of these mice, plus it is no longer necessary maintenance of the ball, is that the movement is much more accurate and consistent. Not all optical mice are the same quality as the operation of an optical mouse is similar to a digital camera ie, the mouse is like to photograph the surface on which it moves, it is noteworthy that there are optical mice different resolutions measured in pixels per inch (dpi), so the higher this measure will be necessary and progressive mouse movement. Another thing to keep in mind about optical mice is that due to its operation based on reflection of light is not able to move on glass surfaces, nor is it able to move freely in my dark or black surfaces and white surfaces, so even if they do not need a mat and ball mice to move freely, whether it is advisable to avoid slipping nonprogressive a specific use for them if we notice the movement in the area for which it is not right move. Laser
: a new technology, changes in the optical, but more expensive laser sensor which is faster and more accurate. Something important to take into account the way it works is that the laser does not emit visible light, ie to turn the mouse does not see a beam of red light in optical mice.
addition to differences in performance technology, another of the differences of mice with others is that they are wired or wireless incorporated within the wireless found these 2: RF
: the keyboard and / or mouse transmit data via radio frequency to a receiver connected to the computer by PS / 2 or USB. Every day lowest price, but with the drawback that the distance that can be placed is small (about 2mm at most, which in many cases do not reach) and the possible interference that may affect their operation.
This is important the quality and / or brand of the group in question, as there are in the market sets a very low cost wireless which can be quite problematic and easily lost in the same frequency so that the receiving / shipping usually has a greater delay in other higher-end models (Trust, Labtec and Rainbow are eg some of the fairly widespread brands whose qualities are usually low-end and Logitech and Microsoft are usually sets of higher quality and less problematic)
Bluetooth: This technology is newer, so it is normal that keyboard are implementing high-end and higher price than other models, but it will be the standard here at once, thanks to its versatility. In this case the keyboard and / or mouse transmits data to a Bluetooth device that can be plugged into the computer in many ways and can order to deceive the signals of more Bluetooth devices at a higher speed than radio, with less possibility interference and greater range (between 10 and 100 meters in open plan, depending on the Bluetooth technology).
0 comments:
Post a Comment