Perhaps everyone saw a computer mouse.This is a necessary device for working with a computer. With the help of it click, switch between objects, control the movements in the games, etc. So, the "mouse" manipulator is an input device. At the moment there are many different types. In the article, each of them will be considered in detail.
It was in this form that the manipulator was inventedoriginally: from the body acted 2 wheels, which were directed perpendicular to each other. One was responsible for the horizontal movement, the other for the vertical. When they moved, they both turned. Of course, the movement was not very accurate, and rotation was often difficult. The very first mouse-like manipulator was created in 1963 by Douglas Engelbart.
The next stage of development of the device - ballmanipulator "mouse". This device is well remembered by those who began to "make friends" with computer equipment in the 90's. In the lower part of the case there was a hole through which a rubberized ball looked out. Inside the mouse there were sensors that were taking data about the movements of the ball. She worked without problems only on special mats, tk. on smooth surfaces the ball did not rotate.
In addition, through the hole in the body insideconstantly fell garbage and wool of domestic animals, so the roller periodically had to be cleaned, otherwise it "jammed" and did not rotate. However, for a long time it was the ball-point computer mouse "mouse" that was considered the best until it was replaced by more advanced optical devices.
The first competitor is ball. It was not able to supersede it due to some shortcomings, which will be discussed below.
Inside the mouse there was a special diode, whichtracked movements of the manipulator on the surface. Thanks to this, the cursor movements on the monitor became more accurate. However, the graphic manipulator "mouse" worked only when there was a special rug on which the alignment strips were applied. On other surfaces the device did not react. For each model of the mouse there was a rug. When replacing it with another device, it did not read the landmarks. The manipulator was very sensitive to pollution. It was also necessary to orient the substrate and the mouse in a certain way, otherwise the latter worked incorrectly. All this kit was quite expensive, so ordinary users preferred the ballpoint manipulator.
This device no longer depended on the rug and couldwork even without it. Best of all, the LED perceived solid surfaces. Therefore, the optical mouse of the second generation easily ousted all its predecessors. At the same stage began to appear specialized computer mice - game mice.
The principle of work here is quite different:inside the case nothing is spinning, and the LED and camera are installed. The first one illuminates the rug or any other surface, and the second one makes micrographs at a high speed (up to 1000 per second). Photographs are processed by the microprocessor, which converts them into displacements in space.
A modern, well-known manipulator.In appearance, it does not differ from the LED, but the laser is used for illumination. Thanks to this, the camera makes clearer pictures. As a consequence, the accuracy of displacements increases. The laser mouse can work on any surface, including the mirror one. Carpet for comfortable work is not required. Computer mouse games are mostly related to this type.
Apparently, the creators of this mouse remembered thatThe movement of the ball-point manipulator was much more accurate if you twist the roller with your fingers. Therefore, they developed a device where you can rotate the trackball manually. Looks like a ball mouse on the contrary: a convex ball is on the outside of the case, and it can be rotated with fingers or palm. You do not need to move the manipulator.
Of course, trackball mice are created for moreperfect technologies, in particular, they are much lighter than ball-type ones, the roller itself rotates easily, but sits in a nest more densely and no longer collects such a quantity of garbage. Again, it uses not only mechanical, but also optical motion sensors.
The main difference is that for herDo not need a separate power source (batteries or wire). The manipulator works at the expense of the inductive energy received from the rug. The latter connects to the computer. Works on the principle of a graphic tablet. This method of connection provides greater accuracy of movement, which is especially important when working with graphics. However, induction mice have a big drawback: an induction manipulator "mouse" is a device tied to a certain rug. The elements of the kit can not be replaced. This manipulator can only work on the carpet, on other surfaces - no.
One of the novelties of the modern market.Equipped with a gyro, which allows you to navigate in three-dimensional space. In other words, the mouse no longer binds to any surface to correctly read information about its movements. It can be picked up and, without using a table, a rug, etc., to control the cursor, simply by moving the brush in the air. Such a mouse can even be compared in part with a conductor's baton.
While this type has not yet entered the broad sale and does not occur in every electronics store.
The "mouse" manipulator is a device in whichthere are still many prospects and hidden opportunities. Most likely, in 10-15 years their appearance will change beyond recognition. And those mice, to which the majority are accustomed, will go to the archives along with floppy disks and cassettes.
