In the relatively brief history of computing, only a few machines have become iconic. Not necessarily because they were a commercial success, mind you, but because they introduced technologies or concepts that went on to become influential.
Streamlining your Digital Life with the new iPad infographic from NextWorth takes a look at the history of the electronic devices that the iPad has replaced in our lives. A true multifunctional device, the iPad has replaced many of our separate gadgets.
Bendix G-15 Harry Huskey borrowed ideas from Alan Turing in sketching plans for the successful G-15, although Bendix engineers prepared the detailed vacuum-tube design. Main memory was a rotating magnetic drum. Important uses included civil engineering for highway design.
This was the first "big" mainframe computer I worked with way back in the The iPhone that fits in my pocket has way more power than this room filling beast but we marveled at it - for the day it was leading edge stuff!