D-ROGERS@EDWARDS-2060.ARPA (03/09/88)
-------
D-ROGERS@EDWARDS-2060.ARPA (03/09/88)
killer!bobc@eddie.mit.edu (Bob Calbridge) writes: > However, no matter which disk, brand or density, I >use eventually one or two files get corrupted on the A:drive. I can copy >a new file over the bad one and it will run for a few sessions and then >the corruption occurs again. Often the same files get corrupted but >just as often different files get hit. Too often the file is "submit.com". >Has anyone else experienced problems like this with their drives? *this is NOT a flame!* Thanks for bringing this up. It reached me just in time, as i'd been considering getting a C128 as a cheap spare CP/M engine. From the data you've provided, i have to wonder whether you are running anything that requires bank switching? Is that when the files show up corrupted? I think i'll forgo the 128 and put a little more money into a machine actually made to do the job. [dale] -------
figueroa@oodis01.ARPA (Andrew Figueroa) (03/15/88)
Re: Corrupted files in C-128 CP/M. I have never had a corrupted file using two disk drives and Commodore's version of CP/M +. It is a terrific little CP/M "engine" and runs C-64 and C-128 native mode software which is generally good and universally innexpensive. I'm just a user - a happy one - and that is the only disclaimer needed. Andy Figueroa aka "figueroa@lognet2.arpa"
rcarter@WSMR02.ARPA (Raymond Carter STEWS-NR-AS 678-3348) (03/29/88)
I'd like to put some of the comments about the C128 in perspective here, if I may. First, I don't believe anyone ever claimed it was the world's best and fastest CP/M machine, although I find it quite nice with the 512K ram disk. Also, by using the CONF utility it is possible to speed up system operations by about 35% - puts the effective Z80 rate at about 2.3 MHZ. Second, I do claim that it is one of the most versatile computers on the market. It runs two of the largest bases of software available - C64, and CP/M - without any additional investment. It also does some pretty reasonable graphics. The builtin software supports 320 by 200 color graphics. I have recently seen a package called BASIC 8 which does really nice 3D 640x200 graphics. All the sound and graphics capabilities are available from within CP/M. I have built a CP/M COMAL graphics package which supports 720x240 graphics on the RGB screen. Not many other CP/M machines will do that! To sum up - it may not be the ultimate CP/M computer, but is an extremely versatile computer, with MUCH good software available.
daveh@cbmvax.UUCP (Dave Haynie) (03/31/88)
in article <8803281907.AA08437@ucbvax.berkeley.edu>, rcarter@WSMR02.ARPA (Raymond Carter STEWS-NR-AS 678-3348) says: > First, I don't believe anyone ever claimed it was the world's best and > fastest CP/M machine, Absolutely correct! The C128 was designed primarily as a followup to the C64, pretty much in the traditional Commdore computer mold going all the way back to the PET 2001. At that, I believe we succeeded, as even discounting the Z-80 operation, the C128 is the most powerful machine in that lineage. The CP/M option was seen as a very low cost way to add a very big pile of software that'd run on the C128. Business and 80 column stuff in particular, since when it was introduced, there was no native mode software to take advantage of the 80 column display, other than the built-in BASIC. > Also, by using the CONF utility it is possible to speed > up system operations by about 35% - puts the effective Z80 rate at > about 2.3 MHZ. What that does is shut off the VIC display, which eats into the system bandwidth a bit. > It also does some pretty reasonable graphics. The builtin software > supports 320 by 200 color graphics. I have recently seen a package > called BASIC 8 which does really nice 3D 640x200 graphics. A few commerical packages also drive it in the 640x400 interlaced text mode, and a few people have recently found a way to get bitmapped graphics working in the 640x400 interlaced mode. > To sum up - it may not be the ultimate CP/M computer, but is an extremely > versatile computer, with MUCH good software available. For a CP/M user who's expecting to run at speeds comparable with today's AT style MS-DOS machines, the C128's CP/M will probably be too slow. You'd be better off buying some machine with a hot Z-80 (6Mhz-8MHz) and a fast hard disk drive. However, for CP/M compatiblity along with the ability to run all those C64 games and educational programs, much faster C128 native mode 80 column software (a 2.04MHz 8502 is roughly equivalent to a 6-8MHz Z-80), than I think a C128 is an excellent computer. And I'm not just saying that because I helped design it. -- Dave Haynie "The B2000 Guy" Commodore-Amiga "The Crew That Never Rests" {ihnp4|uunet|rutgers}!cbmvax!daveh PLINK: D-DAVE H BIX: hazy "I can't relax, 'cause I'm a Boinger!"