One of machine which resulted in todays technological advancements is no doubt a "Computer". Have we have thought from where Computer orginated. Yes we know that the Zuse Z3, made in 1941 is considered to be the world's first working programmable, fully automatic computing machine. But these machines were for commercial purpose only. The first computer machine brought into households which later became basis of modern computers, laptops and now tablet PCs is ZX81 Sinclare. BBC has more news on this first computer which could be read by visiting link.
http://www.bbc.co.uk/news/magazine-12703674
Pic Source: http://www.kropotkin.co.uk/images/cgeuk05/functioning_zx81.jpg
http://www.bbc.co.uk/news/magazine-12703674
Pic Source: http://www.kropotkin.co.uk/images/cgeuk05/functioning_zx81.jpg