Glossary: ROM | Sweetwater.com

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ROM: Acronym for Read Only Memory. ROM is a type of memory chip where the data is programmed (sometimes called masked) into the chip as it is manufactured. Unlike RAM and other technologies it cannot later be changed, reprogrammed or rewritten (which is where the Read Only name comes from). The data stored in a ROM is often referred to as "firmware" since it cannot be changed unless the physical chip is swapped with one having different programming. ROM chips are used in all kinds of electronic computing devices. They often carry the instructions that define the basic operating properties or fixed sets of data required by the device that don't often change. If it is believed that the data in a ROM chip will need to be changed from time to time the reprogrammable EPROM has often been used, though today there are many other viable solutions.

R-Buss	R-DAT	Rack Rail
Rack Space	Radio Wave	Radius (Fingerboard)
RAID	RAM	RAM Disk
Random Access	Random Noise	Rank
RAR	Rarefaction	Rasgueado
Rate/Level Envelope Generator	Ratio	RCA
Re-Amp	RealAudio	Real Time
Recap (or Recapping)	Receiver Image	Reconstruction Filter
Record Enable	Recording Console	Rectifier
Recursive Formula (Filter)	Red Book	Reel
Reel-to-Reel	Reen	Refraction
Refurbished	Regal	Regal
Regeneration	Region	Register
Regulator (Voltage Regulator)	Relap	Release
Release Trigger	Release Velocity	Relic
Relief	Reluctance	Reluctance
Remix	Remote Control	REMS
Render	Repeater	Repeat Mark
Repro	Reproduction Right	Res-O-Glas
Resample	Reset All Controllers	Resistance
Resistor	Resolution	Resolve
Resonance	Resonant	Resonant Frequency
Resonator	Rest	Resultant Tone
Resynthesis	Retro	Retrofit
Return	Reverb	Reverse Breakdown Voltage
Reverse Engineering	Reversion Clause	ReWire
REX File	RFI	RFZ
RGB	Rhodes Electric Piano	Rhythm
RIAA	RIAA Equalization	Ribbon Cable
Ribbon Controller	Ribbon Mic	Rick-O-Sound
Ricochet	RIFF	Rift Sawn
Ring Modulator	Ring Out	RIP
RISC	Rise Time/Fall Time	Ritardando
RMID	RMS	RMS (Root Mean Square)
Robert Moog	Rocket Network	Rocking Bar Bridge
RoHS	Roland Jupiter 8	Roll Mode
Rolloff	Rolloff Slope	ROM
Rompler	Root	Root Key (Sampling)
Rosette	Rosewood	Rotary Selector Switch
Rotary Speaker	Rototom	Round Wound
Rout	RPM	RS-232
RS-422	RSS	RT60
Real Time Analyzer (RTA)	RTAS	Rubato