1937 Professor Howard ai Ken Harvard University Exchange program supported by financial and personnel from IBM has introduced the idea of the punch card-based beige as the import data media. Create a working calculator and konfai machine development was completed in the year 1944, the Automatic Sequence Controlled Calculator that name or Mark l, it is considered to be the world's first computer, automation, Mark l 55 feet long and 8 feet high, and is controlled by electricity as a large machine working speed, it will take 4 seconds in half for example 2 multiply 23 size;
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