_____ is an example of an operating system that support single user process and single thread. Leave a Comment / Computer, Information Technology, mcqs, Operating System A. UNIX B. MS-DOS C. OS/2 D. Windows 2000 See Correct Answer B. MS-DOS Submitted By : Ahsan Ali Soomro Share this:TwitterFacebookLinkedInTumblrPinterestPocketTelegramWhatsAppSkypeLike this:Like Loading... Related