Injection Printer: The main characteristics of an inkjet printer are the speed, which is measured in pages per minute (PPM) and that is usually different depending on whether it is printed in color or in monochrome, and the maximum resolution, which it is measured in points per inch (PPP).

Printers without impact: This is the name given to the printing made by a set of devices, generally connected directly to the computer, that generate the image without the printer form touching the support.

Dot matrix printer: printing is done using heads that contain an array of pixels or dots. Line printer: or band printer has a drum that rotates to place all the characters of a line.

Impact printers: It is the type of printer that is based on the force of impact to transfer the ink to the medium or support (paper, transparencies, etc.) in a similar way to typewriters.

It is the common name of the set of thirteen electrical power connectors and thirteen plug panels, defined in the IEC 60320 specification (formerly IEC 320) of the International Electrotechnical Commission (IEC).

Source Wikipedia

It is a source of electrical supply that has a battery in order to continue giving energy to a device in the case of electrical interruption.

Or as we should call it a voltage regulator is an electrical equipment that accepts a variable voltage voltage at the input, within a predetermined parameter and maintains a constant (regulated) voltage at the output.

Is a brand of the Wi-Fi Alliance, the commercial organization that adopts, tests and certifies that the equipment complies with 802.11 standards related to wireless local area networks.

Source conceptshardware-ruth.blogspot, xataka

Is an industrial specification for Wireless Personal Area Networks (WPANs) that enables the transmission of voice and data between different devices through a radio frequency link in the ISM band of 2.4 GHz.

The PS / 2 connector or PS / 2 port is named after the IBM Personal System / 2 computer series, which was created by IBM in 1987 and used to connect keyboards and mice.