Mine was a Commodor 64 (cos it had a real size keyboard unlike the Sinclair Spectrum).
But my first real computer, cant remember the make, but the basic specs were (having to remember a long way back now
) 4mb of ram, 270mb hard disk, I think the processor was something like 80386 @ 164mh or thereabouts. It had a 14" colour monitor, ran windows 3.1 and even had a 4 speed CD rom. It came with Encarta 95 and cost me the sum of £1,200 ( a heluva lot of money back then).