I've written about this machine before, and it's influence on me, but one can only truly understand its greatness in song.
Yes, the graphics were not as spiffy as a PS3, and yes, games took forever to load (and there was the terror of tape loading errors), but you could program it in a real language (which let you play around with raw memory). For a certain generation, this song will bring a tear to your eye.
And if you don't know who the disembodied head is singing later on in this song, shame on you, shame!!!
Through him, and the spectrum, I feel I had a distinct advantage entering university and becoming an astrophysicist. Thank you, Clive.