We explain what are the input and output devices in computing, also called mixed or bidirectional peripherals.
What are input and output devices?
In computing, it is known as input and output devices or mixed or bidirectional peripherals, to those electronic attachments that allow the entry and egress of information , that is, enter and extract data from the system, either as part of a support mechanism rigid (physical) or not.
In other words, the input and output devices carry out the tasks of the input devices and output devices at the same time , which is why they are called “mixed”, or Input / Output (I / O ), often said in English: Input / Output (I / O).
In this context, when we talk about input or input , we refer specifically to the act of feeding information to the computerized system, that is, to enlarge the content of its database . This can be done using input devices such as the keyboard, mouse or camera.
On the other hand, when we talk about output or output , we refer to the recovery or copying of the information available in the computerized system, often transferring it to a physical or other support. This can be done through output devices , such as a printer, a screen or monitor or a digital projector.
Examples of input and output devices
Some simple examples of I / O devices are as follows:
- Multifunction printers . They were very fashionable in the early 2000s, and allowed both to print documents (output), and to scan them (entry). And they even had photocopying (input / output).
- Touch screens . Like the one that owns our mobile phone, in which we can see the information that the system emits for us (exit) and at the same time enter information by pressing it with our fingers (entrance).
- Devices networks . Modems and network cards are devices that allow you to connect our system to more extensive computer networks, from which you can extract or download information (input) or you can send it (output), such as when we add a photo to an email.
- Virtual Reality Helmets . These devices are placed on the head to simulate a real presence in a virtual environment, emitting a virtual world in the viewers arranged in front of our eyes (exit) and receiving responses from our behavior when moving the head (entrance) in a feedback process which can be seen perfectly in video games.