November, 2000      Diablo Blue      Page 13

Across
3 In 1951 he invented the modern concept of the compiler. (6)
5 In 1935 this company introduced a punch card machine with an arithmetic unit based on relays (3)
7 In 1950 a group at the US National Bureau of Standards produced this machine (4)
11 In 1890 this person's punch cards were used for the US census (9)
13 In 1889 this person invented the first printing calculator (4)
14 The 1945 US Army calculator (5)
15 The first US commercial computer (1951) (6)
16 The western counterpart to #7 across (1950) (4)
17 The person who produced a non-decimal adding machine in 1668 (7)

Down
1 Published the first flip-flop circuit design with #10 down in 1919 (6)
2 In 1939 completed prototype of first machine to calculate using vacuum tubes (9)
4 In 1644 he made a 5-digit adding machine (6)
6 First bug actually found in a computer (1947) (4)
8 In 1937 this Bell Labs constructed a demonstration 1-bit binary adder using relays (7)
9 In 1623 he made a 6 diget machine that can add and subract (9)
10 Published the first flip-flop circuit design with #1 down in 1919 (6)
12 In 1945 this was one of the team members for #14 across (7)

14 In 1945 this was one of the team members for #14 across (6)

Most of us have heard how one of the persons running for president claimed to have been in on the creation of the Internet. It is not the intent of this month's puzzle to go into that bit of history, but we will look back at some of the other people who's creations have made a difference in the world of computers.