Remote data transmission (RDT) was a term used in the 1980s, primarily in Germany, for the transmission of
data between
computer
A computer is a machine that can be programmed to Execution (computing), carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as C ...
s over a medium using a
communications protocol. At the time, the most widespread form was RDT over the
telephone network.
Other transmission media like
radio waves or light were also used. Most RDT now uses the
Internet.
In German speaking areas, RDT is used in the special sense of the considerably more narrowly defined
Electronic Data Interchange (EDI).
Systems for
remote administration of facilities and remote control adjustments may use remote data transmission standards.
To be transmittable, data must be appropriately prepared for the medium. For this, special
hardware, e.g., a
modem or an
ISDN card is necessary.
History
When remote data transmission began, data were exchanged by the use of
diskettes,
magnetic tape
Magnetic tape is a medium for magnetic storage made of a thin, magnetizable coating on a long, narrow strip of plastic film. It was developed in Germany in 1928, based on the earlier magnetic wire recording from Denmark. Devices that use magne ...
,
punched tape and dispatched via
courier (the so-called sneaker net).
In the beginning, electronic remote data transmission was also accomplished through special adapters on special data or
telex lines,
teleprinter,
serial ports, and
analog
Analog or analogue may refer to:
Computing and electronics
* Analog signal, in which information is encoded in a continuous variable
** Analog device, an apparatus that operates on analog signals
*** Analog electronics, circuits which use analo ...
telephone] or over simple
radio connections.
Acoustic couplers that could be attached to a normal
telephone handset, and later
modems, were used.
RDT achieved great significance for private users at the end of the 1980s with the arrival of local and global
bulletin board system
A bulletin board system (BBS), also called computer bulletin board service (CBBS), is a computer server running software that allows users to connect to the system using a terminal program. Once logged in, the user can perform functions such as ...
s like
FidoNet and
CompuServe
CompuServe (CompuServe Information Service, also known by its initialism CIS) was an American online service provider, the first major commercial one in the world – described in 1994 as "the oldest of the Big Three information services (the oth ...
. Many of these systems later had internet access via computer
gateways, but they were mostly discontinued by the end of the 1990s with the internet rise to dominance.
Communication between
PCs through the internet is also a form of remote data transmission.
Methods and Transmission Standards
*
Wireless LAN
*
RS-232
*
V.90
*
ISDN
*
DSL with the variations
ADSL,
ADSL2+,
SDSL and
VDSL
*
Ethernet
*
Bluetooth
*
GSM with the extensions
HSCSD,
GPRS
General Packet Radio Service (GPRS) is a packet oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications (GSM). GPRS was established by European Telecommunications Standards Insti ...
and
EDGE
*
UMTS with the extension
HSDPA
*
IrDA
See also
*
start bit
*
stop bit
*
parity bit
A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally applied to the smallest units of a communication protocol, typically 8-bit octets (bytes) ...
*
baudrate
*
flow control
*
data rate Data rate and data transfer rate can refer to several related and overlapping concepts in communications networks:
Achieved rate
* Bit rate, the number of bits that are conveyed or processed per unit of time
** Data signaling rate or gross bit rate ...
*
Hayes command set
*
electronic banking
Online banking, also known as internet banking, web banking or home banking, is an electronic payment system that enables customers of a bank or other financial institution to conduct a range of financial transactions through the financial insti ...
References
{{Reflist
Broadcast engineering
Digital technology