X-Apparently-From: Message-ID: <027701c09853$1d10ed50$34822a40@dbcooper> From: "Patrick Moran" To: References: <01FD6EC775C6D4119CDF0090273F74A4021F66 AT emwatent02 DOT meters DOT com DOT au> Subject: Re: CP/M Question (#2) Date: Fri, 16 Feb 2001 09:13:36 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.3018.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.3018.1300 Reply-To: opendos AT delorie DOT com Hello Joe, See below. ----- Original Message ----- From: "da Silva, Joe" To: Sent: Thursday, February 15, 2001 8:56 PM Subject: RE: CP/M Question (#2) > Oh, yeah ... I forgot about MP/M ... if this runs CP/M applications > (I presume it does), I'll need to look into it's memory usage as > well. :-/ Yes, it is an 8 bit CP/M OS for multiusers. > Also note that DR-DOS' Diskcopy command can > read and write disk(ette) image files too (ie. like FDCOPY). Yes, but it cannot perform a format like FDCOPY can. You can format a 3-1/2" floppy to 160K, 180K, 320K, or 360K formats and have it boot the system from the 3-1/2. You cannot do this with DRDOS DISKCOPY. It complains about the diskette. Of course the way around this is to go to your CMOS setup and lie to the system and tell it that the 3-1/2" drive is a 360K 5-1/4" drive. Onve the diskette is vreated, you can set the CMOS back to the proper setting and still boot the diskette from floppy. I like DXP the best though. With it you can tell it that you want the format changed and can use it with 5-1/4 HD or any 3-1/2 drive and it will also slow the datarate down. It also has data compression (not very good though) and it allows you to input up to 3 lines of information about the file. That is the feature I really like. > Speaking of which, the Oakland CP/M archive is no more, > since some traumatic system failure at Oakland (a little > time back)! :-( Is the whole world nuts, or just insane? Haven't people heard of something called a backup? Sometimes I even backup a backup, especially old stuff I may no longer be able to get. I run across this all the time, people just wait until a disaster happens and then they still do not learn from it. I have always backed up software, even back in the days of paper tape and punch cards, and cassette tapes. I have two and sometime three diskettes of the same software. I recently backed all of those old diskettes and all the newer stuff to tape. Sometimes I have a hard time finding something, but I know it's there someplace. If I remember the actual name of the file or enough if it to do a search, I can find which tape it is on quickly, until recently because of Long File Names, I cannot use a DOS backup of those. I will probably use Linux and build a database and back all that stuff using TAR. I can restore a TAR backup to any OS I use. I can also do image backups using dd in Linux of any OS and restore it from Linux. If Linux should get corrupt, I can use DOS Linux to restore the full Linux. Like I say, I have backups of backups. I don't take chances. Although once in a while I goof up and did not backup something I thought I had. I have run across a bad tape or two and lost some files. I ran out of tapes and recently got some more and I am now backing up all the stuff I have been downloading over the past few months and had not backed up.I also bought an external Ditto Easy 400/800 tape system which will also read and write QIC-80 DC-2120 tapes, so I can transfer stuff from my system to my brother's system as he has a Colorado Jumbo 250 drive. I picked up 8 brand new sealed tapes for three bucks and a quater + shipping. Only paid $8.50 for the drive and power supply and found two TR-1 400/800MB tapes for a buck and a quarter. Got 4 DC-6250 brand new sealed tapes for my SCSI drive for 5 bucks. I got another Ditto Easy Drive for $10.03 which was factory refurbished without a power supply. I figured any universal external power supply would work. Oooops, wrong, this thing takes 18VAC center taped @1800ma. So I called Iomega and told them I needed a power supply. They gave me the run around and so I emailed them. They finally told me to call the RMA number. I did and they sent me one FREE. I only bought the second one because it came with a power supply and those things cost 20 bucks and a cable. So now I have two diitto external tape systems and can sell one of them and get most of my money back. Also got the cable with the second one. So I now have one factory refurbished drive, a brand new power supply and an external cable and can sell a used drive and used power supply! Not too shabby!!!! With prices like these, I cannot understand anyone not backing up their files. Many people now have R/W CDROMs (which are getting pretty low priced for new ones and used ones are cheap) and you can buy write once CDs for about two bucks each in small quantities and back up 650MB of files on each one and make another copy for another two bucks. They can then store one copy in a very safe place and have the other one on hand. Pat _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com