Untitled - TRS-80 Color Computer Archive

J&M's New JFD,CP Disk Controller Speaks for Itself!
Select ROM
AorROMB
with this
external
switch-no
need to
unplug
controller!
JUMPERS: ]I IN-6ms head step rate; OUT -30 ms head step rate
J2 IN-serial printer; OUT-parallel printer
Jumper defaults apply only to JooS.
DISK CONTROLLER $149
Our new JFD·CP has redefined the state.of.the.art
for Color Computer users. Gold contacts and fully
buffered I/O lines ensure maximum reliability, and
the JFD·CP is plug compatible with both the
original COCO and the COCO·2.
JDOS 1.2
JDOS implements all RS DOS commands, plus
many more, including:
• auto line numbering
• error trapping
• baud rate selection
• OS/9* boot from floppy or hard drive
• Memory Mindert-the most advanced disk drive
analysis system on the market
(Dysan diagnostic diskette not included)
DRIVE 0 SYSTEM $289
Upgrade your Color Computer by adding our new
JFD.CP disk controller, supercharged JDOS
operating system, and a top quality drive with case
and power supply: All for only $289! Comes
complete with cable and manual.
Drive 0 System with one single side drive . . . . . $289
Drive 0 System with one double side drive . . . . $359
Drive 0,1 System with two single side drives . . . $429
Drive 0,1 System with two double side drives . . $499
as DOS plul' riaht into
UpinEPROM
(as DOSoot
Because they are
fully buffered,
my 110 lines
are more
dependable.
You can use this 8-bit parallel port to
support a Centronics compatible parallel
printer or a Winchester hard drive.
MEMORY MINDERt
Memory Minder is a disk drive test program now
included in JDOS. Used with a Dysan digital
diagnostic disk, Memory Minder allows you to
check your drives for speed, alignment, sensitivity,
hysteresis, and more! You can actually align the
drives while viewing the graphics on the screen.
No special equipment needed!
DIAGNOSTIC DISKETTES
508·200: Tests single side disk drives . . . . . . . . . . $26
508·400: Tests double side disk drives . . . . . . . . . $33
Memory Minder is available on diskette for those
who don't own a JFD.CP Controller with JDOS.
Includes Dysan diagnostic diskette.
Single Side Memory Minder Package . . . . . . . . . $79
Double Side Memory Minder Package . . . . . . . . $99
'OS/9 is a registered rrademark of Microwave, Inc.
tMemory Minder is a registered trademark of J&M Systems, Inc.
To order, call (505) 292·4182. or send payment with
order to:
ellA
JaM SYSTEMS, LTD.
15100-A CENTRAL SE
ALBUQUERQUE, NEW MEXICO 87123
505/292·4182
We accept MasterCard and Visa