MPU can refer to different things depending on the context. Here are some possible meanings:

• Memory Protection Unit: A hardware unit that provides memory protection by allowing privileged software to define memory regions and assign memory access permission and memory attributes to each of them. It is usually implemented as part of the central processing unit (CPU) and is a trimmed down version of the memory management unit (MMU) providing only memory protection support. MPU is used in low power processors that require only memory protection and do not need the full-fledged feature of a memory management unit like virtual memory management.

• Microprocessor Unit: A central processing unit when referring to digital signal processors.

• MIDI Processing Unit: An obsolete standard for MIDI interfaces for personal computers.

• Medical-grade Polyurethane: A polyurethane used in medicine, for example, in vas-occlusive contraception.

• Multi-core Processing Unit: A system made of two or more independent cores.

• Minimum Publishable Unit: The smallest piece of a scientists results that can be made into an academic paper.

• Mișcarea Politică Unirea: A Moldovan political party.

• Myanmar Payment Union: A Myanmar financial services corporation.

• Melbourne Poets Union: A forerunner of Australian Poetry and later reincarnated under the same name.

• MPU Ads: A type of website banner ad that is 300 pixels wide and 250 pixels high. This type of website banner ad usually appears on either the left or the right of a webpage, and as the name suggests, it usually appears mid-page. Because of its compact size, the MPU is also one of the more popular mobile display units.

In summary, MPU can refer to different things depending on the context, such as a Memory Protection Unit, a Microprocessor Unit, a MIDI Processing Unit, Medical-grade Polyurethane, Multi-core Processing Unit, Minimum Publishable Unit, Mișcarea Politică Unirea, Myanmar Payment Union, Melbourne Poets Union, or MPU Ads.