Hot on the heels of the first episode comes part two of this unique series. A month has gone by & although Cal is still on the
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Includes: photographs that offer an 'eyewitness' view to the history & science behind the technology that defines our digital world. From ancient to modern times, this title helps you show your child how an ancient Greek computer was used to predict the movement of the stars & how mid-20th century computers were the size of a large room.