Technical Details
The following description applies to DOS/360 except as otherwise noted. Later versions offer additional functionality.
Because DOS/360 was designed to run on low-end System/360 models memory usage was a concern. It was possible to generate a DOS supervisor, the resident portion of the operating system, as small as 5902 bytes. Detailed charts listed memory requirements for each sysgen option, often as little as 100 bytes. A minimum system would leave just over 10KB of storage available for a single batch partition which was enough to run utilities and all compilers but COBOL and full FORTRAN IV. To keep memory usage as small as possible, DOS was coded entirely in assembly language.
Read more about this topic: DOS/360 And Successors
Famous quotes containing the words technical and/or details:
“In middle life, the human back is spoiling for a technical knockout and will use the flimsiest excuse, even a sneeze, to fall apart.”
—E.B. (Elwyn Brooks)
“There was a time when the average reader read a novel simply for the moral he could get out of it, and however naïve that may have been, it was a good deal less naïve than some of the limited objectives he has now. Today novels are considered to be entirely concerned with the social or economic or psychological forces that they will by necessity exhibit, or with those details of daily life that are for the good novelist only means to some deeper end.”
—Flannery O’Connor (1925–1964)