Microsoft Corp will come out with a new version of MS-DOS that will be faster and will require less memory than 4.0, according to Bill Gates, who didn’t know exactly when. Speaking to the Boston Computer Society IBM Special Interest Group, Gates said a high percentage of MS-DOS machines, 80% to 90%, will become Windows boxes. On OS/2, which he claims solves solves every limitation of MS-DOS, Gates said Microsoft will have OS/2 1.2 out later this year with a more powerful file manager, we’ll have to wait for 1990, for the 80386-specific version, although the one for the 80486 – a significant chip – won’t need many software changes.