The word workstation often refers to a general-purpose computer designed to be used by one person at a time and which offers higher performance than normally found in a personal computer, especially with respect to graphics, processing power and the ability to carry out several tasks at the same time. The 3Station by 3Com was a typical early example.
Increasingly the line between a workstation and PC has become blurred as the trend for consolidation has caused workstation manufacturers to 'use off the shelf' PC components and graphics solutions as opposed to proprietary in-house developed technology. What can be inferred from this is that PCs are now themselves at the cutting edge of technology.
Based on material from FOLDOC