This was based on his experience programming networks of transputers, which were general-purpose processors able to be connected in arrays, trees or hypercubes.
Pixar's RenderMan, for example, allows shaders of unlimited length and complexity, demanding a general-purpose processor.
By the standards of general-purpose processors, DSP instruction sets are often highly irregular.
A coprocessor may not be a general-purpose processor in its own right.
Before its cancellation, the Rock would have been the first general-purpose processor to support hardware transactional memory (HTM).
Significant amounts of signal processing are handed over to the general-purpose processor, rather than being done in special-purpose hardware.
In theory at least, programmable chips could have the versatility of general-purpose processors but avoid the instant obsolescence that plagues most electronics.
Unfortunately, the cores on a GPU are not general-purpose processors (at least not yet).
For many embedded applications, interrupt latency will be more critical than in some general-purpose processors.
The simple presence of a general-purpose processor does not make something a PC.