正Man's World

Assume that you have available to you a 360-type computer and the following available input decks:

Deck A : A Basic Assembly Language (BAL) assembler written in binary code (machine language)

Deck B : A FORTRAN to BAL translator, written in BAL

Deck C : A FORTRAN program that will read data cards and print the square roots of the data

Deck D : A data deck for the square root program of deck C

In order to compute the square roots you will have to make four computer runs. The runs are described schematically below. Each run involves (reading from left to right ) an input deck that will be operated on by a program to produce an output deck. Of course, the output deck produced by one run may be used either the input deck or the program of a subsequent run.

In the figure below identify the unlabelled decks with the letters A,B,C,D,E,F,G.

假設你有360種電腦，而且有下列的輸入板：

板A：二進位基礎組合語言器(機器語言)
板B：以基礎組合語言寫成的翻譯器，可將 Frotran 翻成 BAL
板C：FORTRAN程式可以讀資料卡然後顯示資料的平方根
板D：板C的平方根程式的資料板

為了計算平方根，你將執行4回電腦程式。流程大綱如下。每回包含一輸入板由程式執行後產生一輸出板，讀取方式由左而右。當然，輸出板由程式執行一回產生結果，不是當作下個輸入板就是接下去的執行的程式。

以字母ABCDEFG於下圖指出未標示的板。