Errata in Ideas That Created the Future

Page 46, 10 lines from the bottom: "the day before" should be "the day after".

 

Page 53, first line, "mathemactics" should be "mathematics".

 

page 53, line 8: "in 2014" should be "in 2013".

 

Page 63, penultimate line of second full paragraph:  "20 000" should be "£20 000".

 

Page 72, end of second line of paragraph in the middle of the page: "Some or" should be "Some of".

 

Page 92, second line of 10.2.2: 

arithmetics

should be

arithmetic

Page 98, fifth line of 10.5.2:

 

arithmetics

should be

arithmetic

 

(The errors on pages 92 and 98 are in the original typescript.)

 

Page 103, section 10.12.2. "32=26" should be "32=25". (This is correct in the original.)

 

Page 137, penultimate line of first full paragraph. "3 out of 5 codes used for radio telegraphy" should be "3 out of 7 codes used for radio telegraphy".

 

Page 137, second full paragraph. "over nights and weekends. However, the errors"  -->  "over nights and weekends, however, the errors"

 

p. 198. Twice in the last full paragraph, "200" should be "£200".

 

p. 297, fourth word of third paragraph should be "majority" rather than "maturity".

 

p. 352. "so that no two adjacent nodes have the color" should be "so that no two adjacent nodes have the same color"

 

ALL ERRORS BELOW HAVE BEEN CORRECTED IN THE THIRD PRINTING

 

Page 147, second paragraph: Delete final sentence, which is restated in the third paragraph

 

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Page 204, the first paragraph should be replaced in its entirety by:

However, many problems that can be thought through in advance are very dificult to think  through in advance. They would be easier to solve, and they could be solved faster, through an intuitively guided trial-and- error procedure in which the computer cooperated, turning up flaws in the reasoning or revealing unexpected turns in the solution. Other problems simply cannot be formulated without computing-machine aid. Poincaré anticipated the frustration of an important group of would-be computer users when he said, "The question is not, 'What is the answer?' The question is, 'What is the question?" One of the main aims of man-computer symbiosis is to bring the computing machine effectively into the formulative parts of technical problems.

The other main aim is closely related. It is to bring computing machines effectively into processes of thinking that must go on in "real time," time that moves too fast to permit using computers in conventional ways. Imagine trying, for example, to direct a battle with the aid of a computer on such a schedule as this. You formulate your problem today. Tomnorrow you spend with a programmer. Next week the computer devotes 5 minutes to assembling your program and 47 seconds to calculating the answer to your problem. You get a sheet of paper 20 feet long, full of numbers that, instead of providing a final solution, only suggest a tactic that should be explored by simulation. Obviously, the battle would be over before the second step in its planning was begun. To think in interaction with a computer in the same way that you think with a colleague whose competence supplements your own will require much tighter coupling between man and machine than is suggested by the example and than is possible today.

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Page 212, line 4 from the bottom:

recognizes

should be

recognizers

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Page 347, first sentence:

mid-1990s

should be

early 1990s

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Page 357, end of penultimate paragraoh:

Mac OS

should be

Mac OSX

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Page 359, sixth line from the bottom.

The name in each directory

should be

The name “.” in each directory

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Page 441, line 2.

Willy

should be

Willie