MC7 is an assembly language used on programmable logic controllers (PLCs). The state logic language is typically used to write applications.

Multi-Channel DRAM or MCDRAM (pronounced em cee dee ram) is a 3D-stacked DRAM that is used in the Intel Xeon Phi processor codenamed Knights Landing. It is a version of High Bandwidth Memory and a competitor to Hybrid Memory Cube.The many cores in the Xeon Phi processors, along with their associated vector processing units, enable them to consume many more gigabytes per second than traditional DRAM DIMMs can supply. The "Multi-channel" part of the MCDRAM full name reflects the cores having many more channels available to access the MCDRAM than processors have to access their attached DIMMs. This high channel count leads to MCDRAM's high bandwidth, up to 400+ GB/s, although the latencies are similar to a DIMM access.Its physical placement on the processor imposes some limits on capacity - up to 16GB at launch, although speculated to go higher in the future.

MCA Music Inc. is a Philippine regional branch of Universal Music Group. The company uses the MCA name on legal purposes because of a trademark dispute with an unrelated label known as Universal Records, which holds the rights to the word "Universal" for recorded music in the Philippines. However, the company has adopted the moniker "MCA-Universal" to simplify identification, even though no formal "Universal" branding is exercised.

The Minor Counties Cricket Association Knockout Cup was started in 1983 as a knockout one-day competition for the Minor Counties in English cricket. At first it was known as the English Industrial Estates Cup, before being called the Minor Counties Knock Out Competition from 1986 to 1987, the Holt Cup from 1988 to 1992, the MCC Trophy from 1993 to 1998, the ECB 38-County Cup from 1999 to 2002, the MCCA Knockout Trophy from 2003 to 2005. It has been called the MCCA Trophy since 2006.From 1998 to 2002, the competition was contested by 38 teams. The traditional Minor counties, plus Huntingdonshire and the "cricket boards" of the 18 first-class counties, as well as a Channel Islands team. The 2002 competition, which was won by the Warwickshire Cricket Board, remains the only time a non-Minor county has won the competition. This format was discontinued after 2002 and the competition is again a purely Minor counties affair.The most successful Counties are Devon and Norfolk, who have won the competition 5 times. The current champion is Herefordshire who defeated Staffordshire in the 2016 final by 56 runs at Wormsley Park, Ibstone.

MCA Music Inc. is a Philippine regional branch of Universal Music Group. The company uses the MCA name on legal purposes because of a trademark dispute with an unrelated label known as Universal Records, which holds the rights to the word "Universal" for recorded music in the Philippines. However, the company has adopted the moniker "MCA-Universal" to simplify identification, even though no formal "Universal" branding is exercised. Despite the naming, the label is known outside the Philippines as Universal Music Philippines.

MC4 connectors are single-contact electrical connectors commonly used for connecting solar panels. The MC in MC4 stands for the manufacturer Multi-Contact (currently Stäubli Electrical Connectors) and the 4 for the 4mm diameter contact pin. MC4s allow strings of panels to be easily constructed by pushing the connectors from adjacent panels together by hand, but require a tool to disconnect them to ensure they do not accidentally disconnect when the cables are pulled. The MC4 and compatible products are universal in the solar market today, equipping almost all solar panels produced since about 2011. Originally rated for 600 V, newer versions are rated at 1000 V, which allows longer strings to be created.