What Does input devices Mean
An input is, in the field of computer science , a series of data that is received by a certain system for further processing. This concept always appears linked to the output , which involves the presentation of the information so that the user makes use of it as needed.
Input devices vs. output devices
The input devices are those devices and components that allow you to enter information to the processing unit; some known examples of all are the keyboard , the mouse (also called mouse ), the scanner , the webcam ( webcam ), the stylus and microphone ; the way in which the user interacts with them is very varied and has, in each case, a different purpose, which can be the digitization of a text or an image, the capture of a video sequence or the recording of a song , among many other possibilities.
Input devices make it possible to enter information into a system.
On the other hand we have the output devices, a group in which the monitors and printers are located , for example; the former emit information through the screen, while the latter do so in a physical and tangible way, on sheets of paper.
Hybrid products
Other devices, such as network cards and modems , are referred to as input / output devices , since they receive information and distribute it to other processing units. A more precise definition makes it clear that all devices could belong to both classifications, depending on the perspective from which they are viewed; the keyboard, mouse, and scanner also send and receive signals to and from different parts of a computer .
The touch screen is a clear example of a hybrid device, since it collects data each time its surface is pressed, but it also constantly prints the processed information, just like a traditional monitor. It is important to clarify that every time a user interacts with one of them, their actions are sent to the processor (or processors) so that they are evaluated and a result is generated; This can be, broadly speaking, visual, auditory, or a combination of both (when pressing the key of a virtual piano, for example, a sound is emitted while the instrument is animated to simulate its movement).
The mouse or mouse is an example of an input device.
It is worth mentioning that the input devices mentioned in the previous paragraphs are part of the peripheral classification , since they are independent and auxiliary, although not all of them are optional: a motherboard with its processors, its memory and its disks needs some of them to communicate with people, and vice versa.
The evolution of input devices
In recent years, there have been considerable changes in the means through which people interact with the different devices that accompany us in our daily lives. Without a doubt, touchscreens represent the most widely accepted innovation, since we find them in consoles (Nintendo was the first company to bet on this technology, with its DS, followed by the DSi and the current 3DS), mobile phones, laptops and desktops, tablets and televisions.
On the other hand, we have the detection of movement through gyroscopes and accelerometers (small components that collect the information of the rotations and translations that we carry out with the devices) and then modify the virtual world in some way , be it a video game or an application. computing. Another way of observing and capturing the actions of users is by filming them, and for this purpose, 3d cameras are mainly used, which consist of two "eyes", so that they can perceive depth and allow the device to analyze the distance between different objects and subjects.
Finally, it is interesting to note that statistically innovative proposals are more successful through ingenious use of existing technology than those that confuse the public with very complex and expensive ideas.