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HP 95LX - Page 128

HP 95LX
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*
Launch
Memo
Editor
(by
pressing(8)):
15kB,
plus
the
space
needed
for
the
text
document
being
opened
(the
first
1.5kB
of
the
document
doesn’t
require
extra
RAM;
it
is
“absorbed”
in
the
15kB
of
the
program).
*
Launch
Lotus
1-2-3
(by
pressing
(123)):
65kB,
plus
the
space
needed
for
the
spreadsheet
being
opened.
*
Launch
the
Calculator
(by
pressing
E)):
24kB,
plus
the
space
needed
for
the
Solve
equation
list
being
opened.
*
Go
to
DOS
prompt
from
the
Filer:
2kB,
on
top
of
the
96kB
originally
used
to
load
DOS,
the
System
Manager
shell,
and
reserved
space
for
Filer
and
Setup.
*
Boot
directly
to
the
DOS
prompt: 18kB.
¢
Launch
the
System
Manager
from
the
DOS
prompt:
78kB,
on
top
of
the
18kB
used
to
boot
DOS
originally.
Now,
each
of
the
built-in
applications—except
for
1-2-3—must
be
able
to
load
its
program
code
plus
its
currently
opened
data
file
into
64kB
of
memory.
Thus,
the
size
limitations
of
single
data
files
are:
*
.ABK
files:
44kB
e
Text
files
(for
use
by
Memo
Editor):
50kB
.PBKfiles:
47kB
»
.EB@Mfiles:
38
kB
e
.HK1
files:
limited
only
by
available
system
RAM
Allocating
System
RAM
Allocate
as
much
memory
to
the
system
RAM
as
you
can,
without
limiting
your
internal
RAM
disk
to
too
small
a
size.
Until
you
generate
enough
data
files
to
make
it
unworkable,
allocate
about
one
third of
the
RAM
to
the
disk
and
two
thirds
to
the
system
memory
and
(if
you
have
a
lot
of
data,
consider
getting
a
RAM
card).
To
change
the
allocation
of
memory
between
the
RAM
disk
and
system
RAM:
1.
Quit
all
applications
except
Setup.
Remember
to
save
any
files
that
you've
changed
since
you
last
Quit.
2.
Press
(Slystem
(Memory.
3.
Press
(q)
or
(»)
to
change
the
allocation
of
the
RAM
between
disk
and
system.
Notice that
they
move
in
8kB
increments.
4.
Press
when
you
have
the
allocation
you
want.
5.
Press
again
to
reboot
the
system
(or
to
cancel
the
changes.
128
7.
MEMORY
MANAGEMENT

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