Radio Shack TRS-80 100 Manual page 38

RadM/haek*
Computer
Training
Programs
machine-language
The Z-80A
instruction
set,
usually specified
in
hexadecimal
code.
All
higher-level
languages must be
translated
into
machine-language,
or interpreted
by machine
language,
in
order
to
be executed by
the computer.
modem
A
device
which accepts
digital
inputs
from computers and
converts them
to
audio
signals
to
be sent over transmission
lines,
such as telephone
lines,
to
a
second
modem
which
reconverts the signals back
to
digital
output.
open To
prepare a
file
for
access.
output
To
transfer
data from
inside the
computer's
memory
to
some
external area,
e.g.,
a
cassette tape
or
a
line printer.
program
A
set
of
instructions
which
directs
the
computer
in
performing
the desired
operations.
prompt
A
character
or
message
provided by
a program
to indicate that
it's
ready
to
accept
keyboard
input.
random
access
memory
or
RAM
Memory
which can be addressed
directly
and
either
read
from
or written
to.
read only
memory
or
ROM
A
type
of
computer
memory
where
information
is
permanently
stored. This
memory may
be
read but
it
cannot be
written
to.
resident
Pertaining
to
programs
and/or data
that
reside
in
the
main
memory
of
the system.
software
The
portion
of
a computer system which
includes programs, procedures, and
computer
languages.
syntax The
"grammatical" requirements
for
a
command
or statement.
Syntax
generally
refers to
punctuation
and
ordering
of
elements
within
a statement.
upload Allows the transmission
of
a
previously created
file
from
one computer
directly to
another computer.