Tech Team

The operation of a mouse depends on the technology used to capture the movement when being moved on a flat surface or special mouse pad, and transmit this information to move an arrow or pointer on the computer monitor. Depending on the technologies used in the movement sensor or its mechanism and the method of communication between it and the computer, there are many types or families.

The main or most usual objective is to select different options that can appear on the screen, with one or two clicks, by pressing a button or buttons. To handle it, the user must get used to both moving the pointer and pressing with one or two clicks for most tasks.

A keyboard performs its functions through a micro controller. These microcontrollers have a program installed for their operation, these same programs are executed and perform the matrix scan of the keys when one is pressed, and thus determine which ones are pressed.

In order to achieve a flexible system, microcontrollers do not identify each key with its character printed on it, but a numerical value is assigned to each of them that only has to do with its physical position. The Latin American keyboard only supports with direct keys the specific characters of Spanish, which include two types of accent, the letter eñe and the exclamation and interrogation signs. The rest of the accent combinations are obtained using a graphics extension key. Otherwise the Latin American keyboard is oriented towards programming, with easy access to the set of symbols of the ASCII standard.

The pen contains light sensors and sends a signal to the computer each time it registers a light, for example when touching the screen when the non-black pixels under the tip of the pen are refreshed by the electron beam of the screen. The computer screen is not illuminated in its entirety at the same time, but the electron beam that illuminates the pixels runs line by line, all in a space of 1/50 of a second. By detecting the moment when the electron beam passes under the tip of the stylus, the computer can determine the position of the stylus on the screen. The stylus does not require a special screen or coating, such as a touch screen, but it has the disadvantage that holding the stylus against the screen for long periods of time tires the user.