USB (Universal Serial Bus)
Introduction to USB
The USB, or Universal Serial Bus, was designed to make connecting computer peripherals easier (keyboards, mice, webcams, printers, etc.). USB has proved to be a good solution that allows you to connect and add peripherals to your computer.
There are two different types of connectors for USB devices: A and B. These connectors were designed to prevent them from being used incorrectly, and to make using peripherals easy and hassle-free.
If the connection of more devices is needed, using a USB hub is the way to go. Usually, USB keyboards have a two-port hub, which is enough to connect a mouse and a printer. If you need to add more peripherals, then an external hub can also be used. The most common hubs have four to seven ports. Hubs should be connected to the power source with an adapter to make sure that all the devices are able to run smoothly.
USB uses a sufficient amount of bandwidth. Let's say you have a keyboard, a mouse, and a webcam all connected to a PC, the webcam (or other devices which perform data transfers) can operate normally without interfering with the other peripherals.
Before reading on any further, make sure that USB is enabled in your computer BIOS.