December 1960 - Vol. 3 No. 12
Features
Survey of coded character representation
Technical Committee 97 of the International Standards Organization (ISO) is concerned with standards in data processing. The American Standards Association holds the…
The “Survey of Coded Character Representation” by R. W. Bemer (p. 639) covers the representation of symbols in paper tape, magnetic tape and main storage of a…
On programming the numerical solution of polynomial equations
Numerical techniques are presented for computing the roots of polynomial equations. By applying the recommended scaling and inversion rules, the basic Bistrow and…
In reference to the discussion about evaluation ex on page 500 of the September Communications of the ACM, may I point out that there is no need to use Mr. Berin's…
A method for overlapping and erasure of lists
An important property of the Newell Shaw-Simon scheme for computer storage of lists is that data having multiple occurrences need not be stored at more than one place in…
Two methods for word inversion on the IBM 709: method 1
In some logical problems it is necessary or convenient to invert the bit structure of a word, i.e., replace bit i by bit n + 1 - i for i = 1, 2, ···,…
Digital simulation of discrete flow systems0
The discrete flow systems discussed are characterized by the movement of randomly arriving items along interacting channels. Programming a digital computer to simulate…
COPE (Console Operator Proficiency Examination)
Each year electronic computers become more sophisticated, and the programs they must process become more complex. Because of this, dependence of those in computing on the…
A comparison of 650 programming methods
An evaluation of an automatic programming method can be made from many points of view. Two recent articles give evaluations of two compilers for the IBM 650 based on the…