RS-232 is a standard for the voltage levels that represent the logic values in a
digital communications circuit. It does nothing for you, until you feel you might
like to communicate digitally with somebody else. At that point, it becomes
very helpful for both of you to operate in accordance with the same standard.
Otherwise, you may transmit all you want to but you'll never receive amnything.
The 232 doesn't stand or come from anywhere. It's just a reference number. RS-232 = Recommended Standard 232
Recommended Standard 232
onion
A good alternative for a RS 232 would be modern USB ports. The RS 232 is a serial binary single ended data port. This port is common on computers; however, recently this port has been replaced by USB ports.
From BIT Final yr students
EIA/TIA RS-232 (Recommended Standard 232)
RS-232 is a Recommeded Standard (RS) for serial communications. It can be both input and output, or just one or the other. There are RS-232 devices called DCE (for Data Communications Equipment) like a printer, modem, mouse, joystick, monitor. There are RS-232 devices called DTE (for Data Terminal Equipment) like a notebook computer or tower. Two computers may talk to each other over an RS-232 link. The "boss" computer would be the DTE; the "slave" computer would be the DCE. {In practice, nobody really uses RS-232 for intra-computer linking in home or office, but it might be used for fairly long connections on, say, an antenna farm if fiber optics is unaffordable.}
RS-232
RS-232
Yes
serial port
It's standard number 232 of the Radio Sector of the Electronic Industries Association.