What does a bus in a microcomputer usually consist of?

#What does the bus in a microcomputer usually include?

(1) Chip Bus (Chip Bus, C-Bus)

Also known as component level bus, it connects various chips together to form specific functional modules (such as CPU module) information transmission path.

(2) Internal Bus (I-Bus)

Also known as system bus or board-level bus, it is the information transmission path between plug-ins (modules) in the microcomputer system. For example, the transmission path between the CPU module and the memory module or I/O interface module.

(3) External Bus (External Bus, E-Bus)

Also known as the communication bus, it is the connection between microcomputer systems or between microcomputer systems and other systems (instruments, meters, control devices, etc.) Channels for information transmission between devices, such as EIA RS-232C, IEEE-488, etc.

The system bus, also known as the bus in the usual sense, generally contains three buses with different functions, namely the data bus DB (Data Bus), the address bus AB (Address Bus) and the control bus CB. (Control Bus).

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