What is an Operating System, how many types are there, what are they used for?

Bluetooth devices

On computers that have Bluetooth devices, you must also manage access to this hardware through applications, and how it is shared externally.

Power management

The operating system must also be responsible for managing the energy of the devices, so that it makes efficient use of it. For example, it should allow the screen and hard disk to be turned off after inactivity, and then restored when user activity is detected.

It must also manage the speed of the fans or FANs that cool the processor, so that when the processor has a high processing load, it can dissipate the high heat generated by this device.

GPS positioning

The operating system must also provide access to the GPS chip, so that applications can use it for positioning, especially for mobile devices such as smartphones.

It should be noted that one of the elements that generates more energy consumption and battery discharge is the GPS, because due to its condition of satellite connection, it requires a lot of energy for its operation.

Screen position

In mobile devices, the operating system must be in charge of repositioning the different elements of the screen, when they go from a vertical to a horizontal condition or vice versa.

This is related to new devices present especially in mobile devices, such as accelerometers.

Authentication by biometric readers

Currently, operating systems must allow authentication through biometric readers, the most widely used of which are fingerprint readers.

There are also options for facial recognition, as well as for retina authentication.

Audio and video recording and playback

The operating system must also allow audio output or audio or video input for playback or recording from audio or video cards that are independent of the equipment.

Then it must be able to handle different audio playback channels, or several microphone inputs. Thanks to these audio channels, we can listen to mixed audio from a song, Windows sounds, or a YouTube video at the same time.