Message-Id: <3.0.5.32.20001102183639.00858740@mail.f9.net.uk> X-Sender: monode AT mail DOT f9 DOT net DOT uk X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Thu, 02 Nov 2000 18:36:39 +0000 To: opendos AT delorie DOT com From: Mike Vince Subject: Re: A little history In-Reply-To: <000301c044d9$d0000c70$ba881004@dbcooper> References: <39FC9639 DOT A6EFAE6B AT 2net DOT co DOT uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Reply-To: opendos AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: opendos AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk > >Now this is where things start to get tricky. PC-DOS 1 did not have any >subdirectory capability. i.e. there were no such commands as MKDIR (MD) >RMDIR (RM) or CHDIR (CD) and no: >. >.. > MS/PCDOS 1 was ok on 320k floppies. But the limit on directory entries to 112 and no sub directories ment you could have only 112 files on a 10 Meg hard drive. My first experience with CP/M (and Microsoft) was a Microsoft Z80 plug-in for the Apple II. My early PCs also had Z80 plug-ins so that I could use my Microsoft CP/M basic complier for 8080 software development. Digital Research DOS Plus allowed one to read both DOS and CP/M disks, A great boon at that time. Mike Vince