Cdex Training for the VisiCalc Program
Released in 1983 by Cdex Corporation
For IBM PC 5150 computers
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This is an interactive training program that will teach you how to
use VisiCalc. Cdex also sold training programs for WordStar,
SuperCalc, EasyWriter ||, The IBM Personal Computer, and The Apple
//e Personal Computer. There were versions for both the IBM PC an
Apple II.
These disks are intended for use as a "booter". Insert disk 1 in to
the A: drive, and boot your computer.
Important: These disks are formatted for the UCSD p-System and will
not open in Winimage. There are currently no known file management
utilities that can handle this format. Additionally, these disks can
not be read or accessed under MS-DOS. The UCSD P-System uses an odd
disk format where sectors are numbered 9 through 18.
In addition to the UCSD p-System format, these disks contain copy
protection. The last track differs from the p-System format and
contains an intentional bad sector.
The UCSD P-System on these disks has an issue similar to IBM's
CP/M-86. It will fail to boot if an XT-style hard disk controller is
installed. If you are using the PCE emulator to run this, you must
disable any hard disk emulation.
Otherwise, you will see the error message:
UCSD p-System IV for IBM PC [B1]
Can't read SYSTEM.INTERP
This software has been verified to run on the PCE emulator, and on
clone computers without an IBM style hard drive.
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