Specifications

CP/M Mode CP/M is a popular operating system (OS) for microcomputers devel
oped by Digital Research Incorporated (DRI). Like all operating sys
tems, CP/M is a set of instructions that tells a computer how to man
age all the hardware and software elements of the system.
CP/M mode on the Commodore 128 provides you with the capa
bilities of DRI's CP/M Pius Version 3.0, including 128K of random
access memory (RAM), a 40- or 80-column display, programmable
function keys, and access to a fast disk drive, tn CP/M Mode you
can run any of thousands of commercial software programs
available for CP/M 3.0 and other, earlier versions of CP/M (CP/M 2.0,
CP/M 2.2, etc.)
Entering CP/M Mode—40 Columns—with the
Computer OFF
1. Make sure you are using a properly connected
composite monitor (color or monochrome). If
you are using a 1902 dual monitor make sure the
monitor screen display is set for a separated
chroma/luma (40 columns).
2. Make sure computer 40/80 key is not
depressed.
3. Insert the CP/M 3.0 system disk.
4. Turn the computer on. CP/M 3.0 is booted (that
is, loaded) automatically.
Entering CP/M Mode—80 Columns—with the
Computer OFF
1. Make sure you are using a properly connected
RGBI monitor (color or monochrome). If you are
using a 1902 dual monitor make sure the moni
tor screen display is set for RGBI (80 columns).
2. Depress computer 40/80 key.
3. Insert the CP/M 3.0 system disk.
4. Turn the computer on. CP/M 3.0 is booted (that
is, loaded) automatically.
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