What are some of the standard buses used in a computer system and what are they used for?

"There are several different types of buses used within computer systems and other devices for communication. Each of these has a specific function, and some of the common ones include PCI, ISA, and EISA. Other standard buses used for communication in computing devices are:

Universal Serial Bus or USB, is used to communicate between a device's central processing unit and external devices, such as power supplies, speakers, and keyboards.
- I2C is a serial bus that enables the communication between multiple integrated circuits.
- Controller Area Network or CAN bus, is specific to vehicles and allows various components of the vehicle's electronic control systems to communicate. "