International Packet Switched Service
The International Packet Switched Service (IPSS) was created in 1978 by a collaboration
between the United Kingdom's General Post Office, Western Union International, and the United States' Tymnet. This network
grew from Europe and the
Companies and individual users could connect in to the network, via a PSS (Packet Switch Stream) modem, or an X.25 PAD (Packet Assembler/Disassembler), and a dedicated PSS line, and use it to connect to a variety of online databases and mainframe systems. There was a choice of about three different speeds of PSS lines, and a faster line was more costly to rent.
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