SHARC
Analog Devices' family of floating-point DSPs, one of the most common chips in professional audio hardware.
The name stands for Super Harvard Architecture Single-Chip Computer. Where a classic Harvard design has separate buses for program and data, Analog Devices added an instruction cache, letting the core fetch two operands and an instruction in the same cycle. The first part, the ADSP-21060, arrived in 1994 with a large amount of on-chip memory and 32-bit floating point at a time when fixed-point formats dominated.
Floating point is what made SHARC popular in audio. A fixed-point DSP demands that the programmer watch every intermediate result so it doesn't hit the ceiling; with floats, a high-resonance filter can stretch out without clipping internally. Universal Audio's UAD-2 cards, which run studio emulations on behalf of the host computer, are built on SHARC, as are a long list of digital mixing consoles and car audio systems.