which part of th CPU would proform arithmetic operations
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The CU ( Contrul Unit) controls operations of other parts of CPU as well as all parts of computer by sending a control signal.
Protocols in data communications serve as rules that govern how data is transmitted and received between devices. They facilitate the exchange of information by ensuring that devices can understand and interpret the data being sent, establish connections, and manage the flow of data. In essence, protocols enable devices to communicate effectively and reliably with each other in a standardized manner.
Input Device
Source data automation devices are devices that help collect data in its original digital form. Instead of translating or transcribing data, this allows for the direct collection of information.
The function of a control unit is to provide control signals and timing to direct the operation of other units. The control unit manages all of the computer resources and it directs the data flow between your devices and the Central Processing Unit.
Input devices connect to the computer and they pass data into the Processor where it can be processed.