The basic difference between a PROM and a PAL is that:
A) in PAL, inputs to its AND array are programmable, whereas the OR inputs are not.
B) in PAL, inputs to its XOR array are not programmable, whereas they are in PROM.
C) in PAL, inputs to its AND array are not programmed whereas the OR inputs are.
D) Both A and B are true.

Question

Quizplus · Accepted Answer

In a PAL (Programmable Array Logic), the AND array is programmable, allowing for the customization of logic functions, but the OR array is fixed. This contrasts with PROM (Programmable Read-Only Memory), where the programming determines the fixed output based on the input address lines, without the distinct programmable AND and fixed OR arrays characteristic of PALs.

The Basic Difference Between a PROM and a PAL Is