Computing
- Pacific Microelectronics Centre, acquired by Sierra Semiconductor in 1994 to form PMC-Sierra
- Parallel model combination, a Hidden Markov model-based method for robust speech recognition
- Parrot Magic Cookie, a type of register on the Parrot virtual machine
- PCI Mezzanine Card, a printed circuit board
- Portable Media Center, a hard drive-based portable media player
- Programmable metallization cell, new memory technology that uses copper nanowires
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