I think gate and device are different... not sure, me not
engineering student any way. I only came across it when I borrowed
a friend's book for fun.
The device is a device, a dead thing. The gate contains the
code...
PLD are more flexible than fixed logic devices. A fixed logic
device, once created, cannot be changed. That means they have to go
through extensive testing to make sure that they are correct before
being implemented, otherwise the programmers have to start all over
again, from designing to implementation.
For PLD, they are more flexible. They can be modified, and the
changes are immediately effective. Think of how we flash ROM on a
motherboard, it's something similar to that effect.
