|
gptkbp:instance_of
|
gptkb:XMPP_Extension_Protocol
|
|
gptkbp:bfsLayer
|
4
|
|
gptkbp:bfsParent
|
gptkb:Commodore_64_modem
|
|
gptkbp:accolade
|
NAK
ACK
|
|
gptkbp:based_on
|
block-oriented protocol
|
|
gptkbp:block
|
1 byte
128 bytes
|
|
gptkbp:communication
|
asynchronous
|
|
gptkbp:developed_by
|
gptkb:Ward_Christensen
|
|
gptkbp:error_handling
|
gptkb:none
manual intervention required
|
|
gptkbp:features_character
|
ASCII
used for communication
|
|
gptkbp:first_introduced
|
gptkb:C
|
|
gptkbp:first_released
|
gptkb:1977
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
XMODEM
|
|
gptkbp:influenced_by
|
gptkb:Kermit_protocol
ASCII protocol
|
|
gptkbp:is_compatible_with
|
widely compatible
|
|
gptkbp:is_often_used_in
|
early personal computers
modems
BBS systems
|
|
gptkbp:is_used_for
|
file transfer
|
|
gptkbp:legacy
|
still used in some systems
|
|
gptkbp:mode
|
gptkb:poet
binary
|
|
gptkbp:notable_features
|
gptkb:historical_event
low overhead
simple implementation
easy to understand
widely documented
influenced future protocols
pioneered file transfer protocols
used in early networking
|
|
gptkbp:operated_by
|
serial communication
|
|
gptkbp:partnership
|
gptkb:XMODEM_family
|
|
gptkbp:reliability
|
moderate
|
|
gptkbp:security_features
|
ensured by checksums
|
|
gptkbp:storage
|
up to 128 KB
|
|
gptkbp:succeeded_by
|
high
|
|
gptkbp:successor
|
gptkb:YMODEM
gptkb:ZMODEM
|
|
gptkbp:supports
|
error detection
|
|
gptkbp:transfer_fee
|
requires user intervention
|
|
gptkbp:transmission
|
simple
up to 2400 bps
EOT
|
|
gptkbp:uses
|
checksum
|