Sanyo MBC-550 Series User Manual page 61

The real estate for electronic circuits.
Sheets CIRCUIT BOARD of fiberglass or
epoxy with copper conductors "etched"
onto the surface. Components mount onto
the traces.
PRINTED
CIRCUIT
BOARD
Sequences of commands or instructions
which define a desired effect or
achievement.
PROGRAM
Acronym for "Programmable Read-Only
Memory".
altered. Data in PROMs is retained even
if power is turned off. Some PROMs can
be erased and reprogrammed.
PROM
PROMs are ROMs that can be
Fast read-write memory for general use
by a computer,
values in RAM locations and recalls them
for use at any time.
Data in RAM memory is lost when the
power to the computer is turned off.
RANDOM-ACCESS
MEMORY (RAM)
The computer stores
Slower memory for constant storage of
programs or data for use by the computer
when the power is first turned on.
Information in ROMs cannot be changed.
Information in ROMs is retained when the
power is turned off.
READ-ONLY
MEMORY (ROM)
To complete a subroutine and return back
to the main program that "called" it.
RETURN
Standard for serial communications.
Serial structure for I/O.
RS-232C
To begin the sequence of instructions or
commands of a program.
RUN
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