How many PCBs are found in the digital AIP?

• A. 2
• B. 3
• C. 4
• D. 5

Answer: (B)

The main idea here is understanding how a digital AIP is built from separate circuit boards and how those boards divide the essential functions. A digital AIP uses a modular design with three main PCBs that each handle a distinct function: one is the processing board that runs the logic, another takes care of memory/storage and the data bus interfacing, and a third provides power distribution along with the input/output connections to the rest of the system. This three-board setup covers the core needs: processing, data handling, and external interfacing while being powered and protected. If there were only two boards, you’d be missing a dedicated function (either memory/interface or power/I-O support); if there were four or five, you’d be adding components beyond the standard configuration. So, three PCBs is the correct count.