Error-free file transport protocol.
A popular file-transfer protocol developed in 1977 by Ward Christiansen. The protocol works by sending blocks of data in 128-byte blocks from PC to PC. Included with this data is an error-detection system called a checksum. When the data is received, the error detection system ensures that the entire message reached its destination. If not, the receiving computer sends a request for retransmission of the data. Compare with Ymodem, Zmodem.
file transfer protocol for modems in which data is sent from the Internet to the PC without acknowledgment from the PC.
A communications protocol that allows you to transfer files between your computer and a network with error correction.
A standard modem protocol used for file transfer. Others include Ymodem and Zmodem. See Kermit.
(CRC) - This may or may not be the most popular protocol in use today, as it is slowly being replaced by quicker and more reliable protocols. Xmodem (CRC) sends files in blocks of 128 characters at a time and checks for errors using a sophisticated Cyclic Redundancy Check.
A file-transfer protocol used most commonly with modems.
A protocol designed to facilitate the reliable transfer of data between computing devices..
Used by DOS applications, Xmodem is an error-correcting protocol and other communications programs.
a protocol for transferring blocks of data together from one computer to another developed in the 1970s by Ward Christensen. The advantage to Xmodem technology is in its ability to detect errors and to ensure that data isn’t lost during transfer.
This is a protocol for transferring files during direct dial-up communications. Xmodem has basic error checking to ensure that information isn't lost or corrupted during transfer.
A file transfer protocol, predecessor to Ymodem and Zmodem.
A widely used file transfer protocol.
An 8-bit, public-domain error-checking protocol developed in the late 1970s. The file transfer protocol uses a 128-byte data block and cyclic redundancy check (CRC) or checksum error checking. See CRC.
A popular but slow file transfer protocol.
An early form of file transmission for dialup and telnet connections. It is slower and uses smaller blocks of data (128 bits) than ymodem and zmodem.
A file-transfer protocol developed by Ward Christiansen to check for errors as files are transferred.
The first of a family of error control software protocols used to transfer files between modems. These protocols are in the public domain and are available from many bulletin board services.
A relatively simple form of file transfer protocol, developed by Ward Christiensen, that allows the transfer of any type of file, either ASCII or binary, without conversion. The protocol involves breaking the data into blocks and adding calculated checksums which can be verified by the receiver. It also caters for flow control in that the receiver can request re-transmission of blocks that have been received with errors.
A protocol that determines the modem connection between two computers.
A file transfer protocol. Rather slow
protocol for transferring files during direct dial-up communications. Developed by Ward Christensen in 1977, Xmodem has basic error checking to ensure that information isn't lost or corrupted during transfer. It sends data in 128-byte blocks. Xmodem has undergone a couple of enhancements: Xmodem CRC uses a more reliable error-correction scheme, and Xmodem-1K transfers data faster by sending it in 1,024-byte blocks. See also Ymodem and Zmodem.
n. A file transfer protocol used in asynchronous communications that transfers information in blocks of 128 bytes.
XMODEM is a simple file transfer protocol developed as a quick hack by Ward Christensen for use in his 1977 MODEM.ASM terminal program. XMODEM became extremely popular in the early bulletin board system (BBS) market, largely because it was so simple to implement. It was also fairly inefficient, and as modem speeds increased this problem led to the development of a number of modified versions of XMODEM to improve performance or address other problems with the protocol.