Apple Computer Inc has joined the unseasonal chorus of woe, and following Microsoft Corp’s warning that Windows95 may not be ready to ship until August, has had to own up to a big delay in Copland, expected to appear as Macintosh System 8. It now expects Copland to be shipped in mid-1996 rather than the original target date of the end of 1995, David Nagel, general manager of the AppleSoft division said. Copland is intended to be the first version of Mac OS to implement full pre-emptive multitasking, so that several applications can run concurrently, and one bad application or mistake by the user won’t crash the system.