The article describes a complete PC "system", i.e. screen+computer+keyboard+mouse+storage, for $100 based on the Raspberry Pi and cheap generic peripherals. Th

The article describes a complete PC "system", i.e. screen+computer+keyboard+mouse+storage, for $100 based on the Raspberry Pi and cheap generic peripherals. The (adjusted) launch price of the ZX81 was £143 in kit form, which with today's exchange rate is about $219. That does not include a screen, and so on. See the difference?