Question: 1. What facilities or attributes make a microcomputer easy to test?
2. What facilities or attributes make a microcomputer difficult to test?
3. Why are closed-loop systems harder to test and debug than open-loop systems?
4. What additional logic and circuitry would be required to make a single-board 68000 microcomputer testable by turning it into an open-loop system? Assume that the SBC has a 96-pin connector that can be connected to external test equipment.