PENZGEP.NET

In computers, any device (for example, a controller installed on an expansion card or a motherboard) except RAM is treated as a peripheral by CPU. Data exchange between the central processor and peripheral devices is carried out through input-output ports. IO port is a buffer device or register of a controller, digital signal processor, etc. which are directly connected to the computer IO bus. Through input-output ports, you can connect a variety of internal and external devices to your computer to expand its capabilities... IO ports allow you to establish a connection between the devices and software in the computer. They are similar to two-way radio channels since the exchange of information in either direction occurs on the same channel.