....
The smalles! addressable unit
01
memory
ln
the
Computer.
conslstîng
01
elQht consecutIVebits. and
capable
01
representlng
2S6differenl values, a.g
.•
dedmal
values Irom zero10255.
il
:1
1
---------
entrypol.t
The
address
of
a
machine-language
program
or
routinewhere
execution
is
to begin. This
is
not
oecessanly
the
same
as
the
starting address.
close
Temunate
acœssloadis!< file
Belore
re·acceSSlng
the
file.
VOU
musl reopeo
11.
....
Information thal Is
passed
10
or trom a program.
deb
••
T0
isolata
and
ramova
loglCal
or
synlax
errols
Irom
a program.
declmal
Capable
01
assuming
onac!
10states,
eg
.the
decimal digits
0.1"
..
9,
del.ull
An action
Of
value which is supplied
by
the
Computer
when
you
do
nol
specify an action
or
value
10
be
used,
dell_lter
Acharacter
which markS the
beginmng
or
endef
adata
item. and
IS
nol
a pari 0'the data.
destin.tlon
The deVJce
01
address
which
receives
the
data
during
a
data
transrer
operallOn
direct
.cee
••
see
random
aceess.
dlrect0'll
Alisting
oIlhe
Iileswhieh are
contaloed
on
a
disl<.
di.kdrive
or
Mini
Di,
...
dri
..e
The physlCal
devlce
which
writes
data
omo
diskettes
and
retrievesil.
dlskette
ordl.k
A magnetlc recording
medium
for mass
data
slorage.
drille
number
An
integervalue
Irom
0
ta
3, specilying
one
01
the Mini Disk
drives.
end.ol·fiIe
orf:OF
Amal1lerwhich
indicales
the
end
al
a
dlsk
Ille.'
e •
wherethe
meaninglul
dala
ends
afld
the
unknown
begins
64
field
A user-defined
subdivision
of
a
random
accesslile-buffer,
crealed
and
named
wilh
the
FIELD
statement.
..
.
An
organized coIlectioo01 related data.
flle
e.te
••
lon
Anoptiooat field
in
a file specilicatioo, consisling
of
a/lollowed
by
one
alphabelic
and
up
la
Iwo
alphanumenc
characlers.
fllename
A reQuired field in a
lile
specification, consisting of one alphabetic
followed by
upto
eighl
alphanumeric
characiers. Filenames are
assigned
when
a
lile
is created
or
renamed.
formai
Ta organize a
new
or
magnetically
erased
disketteinto Irack.s
afld
sectors.
gra.ule
The
smallest unitof
allocatable
space
00
adisk, consisling
01
rive
sectors.
be
••
dec:imalorhe.
capable
of
existing in
ooe
of
16
possible
states. For example.
the
hexadedmal
digits
are 0,1.2. ..9.A.B,C,D.E.F.
lnpul
T0 transfer
data
from
ouIside
the
Compu1er (trom a
dis!<
Iile,
keytloard,
etc)
intoRAM.
madline
language
The
6809
instructioo set. usually
spedlied
ln
hexadeamal
code.
Ali
higher-tevellanguages
must
be
translaled
inlo
machine·language
În
order
to
be
executed
by
the Computer.
oelaf
Capable
of existing in
one
of eight states. for example, the octal
digllsareO,1,
...
,7.
open
Ta
prepare a lile for
access
by
assigning a seQuentlal input,
seQuential output.
or
random
110
buffer to II.
65
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