Case 8000 Series Reference Manual page 130

character set may be different (e.g. IBM-EBCDIC), without requiring
different terminal equipment.
FTP is a File Transfer Protocol; it allows the transfer of ASCII or IMAGE
files from one machine to another across the network. Again the use of
ASCII allows a common interchange to take place, even if the hosts have
different character sets. The image mode allows exact images of the files
to be transferred without conversion.
SMTP is a Simple Mail Transfer Protocol; it allows user electronic mail to
be transferred from machine to machine across a network, until it is
delivered to the end user.
The above only describes a small subset of TCP/IP – as stressed earlier it is
a 'suite' of protocols, both communications and applications. The more
popular components of these protocols have been touched upon, but readers
who wish to become more familiar should refer to the many texts on the
subject of TCP/IP.
Router supports Ethernet, IP, ARP, TCP, TELNET and RIP.
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