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Look up ppm in Wiktionary, the free dictionary. |
PPM is an initialism that can refer to any of the following in this list:
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[edit] Culture
- Peter, Paul and Mary, a 1960s folk music trio
- Picture Postcard Monthly, a magazine for collectors of postcards
- Please Please Me, the first album by The Beatles
[edit] Health
- Permanent pacemaker or artificial pacemaker
- Persistent pupillary membrane, a condition in the eye
[edit] Technology
- Parry People Movers, a British company manufacturing lightweight railbuses
- Parts per million, a way of quantifying small concentrations, usually mass
- Peak programme meter, a type of audio level meter
- Perl package manager, a packaging system for distributing precompiled modules for use with the Activestate binary distribution of the Perl programming language
- Permutation parity machine, a form of neural network used in neural cryptography
- Portable pixmap, a graphics file format. See Netpbm format
- Portable People Meter, created by Arbitron to measure radio broadcast audiences
- PPM Star Catalogue An astrometric catalogue of 378,910 stars
- Prediction by Partial Matching, an adaptive statistical data compression algorithm based on context modeling and prediction used in computer science
- Proton precession magnetometer, which measures the strength and/or direction of a magnetic field by measuring the resonance frequency of protons (hydrogen nuclei) in the magnetic field
- Pulse-position modulation, a modulation scheme
- pixel per meter, analog of dots per inch
[edit] Other
- Pages per minute, a measurement of printing speed
- Partido Popular Monárquico (People's Monarchist Party), Portuguese political party
- Partially Permeable Membrane
- Persekutuan Pengakap Malaysia, the Scouts Association of Malaysia
- Planned Preventative Maintenance, a schedule/program for building maintenance
- Progressive Party of Maldives, a political party in the Maldives
- Private Placement Memorandum, the initial offering document for a private placement, also known as prospectus
- Probabilistic Packet Marking, an IP Traceback method
- "Processor Power Management", an update of Advanced Configuration and Power Interface
- Product Portfolio Management, an aspect of Product Management
- Project Portfolio Management, management of a set of programmes as a single portfolio
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