V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PCB
       Printed Circuit Board


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PCB
       Process Control Block (BS2000)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PCB
       Program Communication Block (IBM)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

PCB
       Protocol Control Block (TCP)


The Free On-line Dictionary of Computing (30 December 2018):

PCB

   1.  Power Circuit Breaker.

   2.  Power Control Box.

   3.  Printed Circuit Board.

   4. Process Control Block.

   5. Product Configuration Baseline.

   6. Program Control Block.

   7.  Protocol Control Block.

   (TCP).