VECTOR 4 USER'S
MANUAL
INTRODUCTION
TO
VECTOR 4 CP/M
Not every floppy has a copy of the operating system,
just
as not every
record
has
the
same music
on
it.
A floppy which does contain the operating system
is called a system diskette. Before you can boot from a floppy,
you
will need
to
have a system diskette loaded in the drive.
Once the automatic booting program finds
the
system
tracks,
it
copies
the
operating
system
into
the
RAM,
and
"awaits
further
instructions".
(If
you
could
do
this
on
your
stereo,
it
would
be
like
making a copy of a
record
which
told
your
stereo
how-
to
play _ other records.) The computer is
now
at
the command level of Vector 4 CP/M.
In
this
and
other
manuals, you will also find references
to
a "warm boot" and
a
"cold bootlf.
In
a cold boot - performed
after
the
power has
been
turned
off,
when you
press
the
RESET button, or during some programs which
alter
certain
important
settings
of
the
system
'-
the
entire
operating
system
is
copied
into the
RAM.
A warm boot simply reads in a specified portion of the
operating system,
to
take
new
settings
or
conditions
into
account.
Some
utility
programs you will
be
running end with a warm or cold boot, in order to
bring
CP/M
up to
date.
Review
Booting is important because:
•
it
copies
the
operating
system
into
comp~ter
memory
(the
RAM),
where
it
can
interpret commands.
•
this
area
of
memory is erased every time the system
is
turned off
or reset.
• only when
the
operating
system is in memory
can
the
computer
perform any activity.
Booting consists of:
• finding
the
"recording" of the operating system
in
the system tracks.
• copying the entire operating system into
the
RAM
for a
~
boot.
• copying only the parts which have been
affected
by
new
activity for
a
.w.m:m
boot.
• giving you
the
A)
prompt to
tell
you
that
the computer is ready for
action.
Rev. A - 9-01-82
7100-0001
VII-U
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