Most computers have both internal and external buses.
With processors now running in excess of 40 MHz, the external bus is becoming a severe limitation.
It receives its input from the internal bus and gives its output to the external bus.
The EX stands for the external bus.
The only external bus and taxi services are between Khakassia (Abakan) and Kyzyl.
Half-price discounts are offered to children, senior citizens and students under the age of 18 on the external bus and ferry routes.
Instructions for the ALU were fetched two at a time to use the full external bus.
It had a 32-bit internal bus and a 16-bit external bus with a 24-bit address bus.
This enables enclosure vendors to power the devices directly from the host device's USB or other external bus, in most cases.
Other typical uses are internal and external buses in microprocessors, memories, and peripherals.