What is the role of a CPU in the context provided?

The role of a CPU (Central Processing Unit) in the context provided is crucial to how embedded systems function in communication. A CPU acts as the brain of embedded systems, executing instructions and processing data necessary for the system’s operation. In many electronic transactions and systems that require communication capabilities, the CPU delivers the processing power that enables the system to perform tasks like sending and receiving data, interpreting inputs, and controlling outputs.

Embedded systems often include microcontrollers, which house a CPU along with other components for specific functions. In the realm of electronic transactions, these systems are utilized in devices such as point-of-sale terminals, card readers, and secure communication tools that ensure transactions are handled efficiently and securely.

While handling financial transactions, storing customer information, and regulating billing processes are essential functions within payment systems, they rely heavily on the underlying computational capabilities of the CPU, which enables these processes to occur effectively and securely through the infrastructure provided by embedded systems. This highlights the critical role of the CPU in determining how seamlessly and securely electronic transactions are conducted.