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2014-04-26 Can you image the programming without debugging? [長年日記]

When I was a college student, a professor of my laboratory used to tell me,

In the past, in order to use the computer, he had to ask for the large scale computer centers in University of Tokyo.

In order to make a calculation, he had to send a bunch of punch cards that were written a program to University of Tokyo. (The punch card were written "Z(1) = Y + W(1)" only).

Ebata: "Professor, how did you debug the programming?"

Prof.:"There was no concept of debug in those days"

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Can you believe it?

Can you image the programming without debugging?

He drilled a hole in the punch card of several thousand pieces (with loudly noise), and packed the card in cardboard box to the university.

After that he had to wait the results for several months.

Can you live in the world as a research engineer?

The program code that was written in one card is just one line, for example "Z(1) = Y + W(1)".

If I had been him, I would have gone mad no doubt.

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Prof.:"When I noticed the error of the top of program list, I don't know how to express the despair…"

Ebata: "Professor, you don't have to say any more.

However I had one deeply question about it, and I asked him,

Ebata:"How do you get the result of error?"

Prof.:"I had got a paper that is described just "Syntax error in line 1"".

Listening to this story, I really cried.

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People who have their own personal computer that far surpasses the computational capability of the computer center of the University of Tokyo at the time.

And the specified guys who use only for erotic game, contents of copyright violation and careless tweets.

Apologize to my professor.