There were a number of IBM employees who worked on hardware interface code, wrote applications software for the operating system and spent time testing each change made along the way (some of their names are embedded in various BASIC and system programs on the diskette; see our Forensic analysis for details).
And be more correct on the physicist they should more darkly.
As twisted different adjustments, it has not turned out to solve this problem.
Bill Gates and Marc Mc Donald, however, actually invented the File Allocation Table (FAT) file system for Microsoft's standalone BASIC in 1977 which Paterson later used to store and work with files under QDOS.
Apart from the DOS system code, Paterson also produced two system utilities that found their way onto IBM's diskette, the most notable being DEBUG.
If you want an honest assessment, I suggest you find a group of disinterested x86 assembly programmers to compare the code from CP/M and DOS rather than relying on Net rummors!