Which of the following is the fastest

A video terminal is a device that displays text and images. It is typically used to interact with a computer. Video terminals are typically slower than CPUs, but they are often less expensive.

Sensors and mechanical controllers are devices that are used to control physical processes. They are typically slower than CPUs, but they are often more reliable.

In conclusion, the CPU is the fastest component in a computer. It is responsible for carrying out the instructions of a computer program.