DIGITAL DIGITAL Computing Timeline
1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957
<1973>

May:
RSX-11D, a real-time operating system for online data acquisition, monitoring and control on the PDP-11, is introduced.

RSX-11D was aimed at the sophisticated end-user and included a real-time executive, on-line program development, complete device handling capabilities and total system protection. Typical applications were in the lab, industrial, computation and OEM markets.

July:
RT-11, a real-time operating system for monitoring and control, is introduced.

RT-11 signaled DIGITAL's entrance into the low end of the real-time market. With its single-job monitor and F/B monitor, RT-11 was designed for the single-user involved in program development and/or real-time applications, providing fast, simple, on-line access to any PDP-11 processor with at least 8K of memory and mass storage.

September:
DIGITAL develops DEC Data Communications Message Protocol (DDCMP) as a standard for its future computer-to-computer communications.

DDCMP, which was used to develop DIGITAL's Network Architecture (DECnet), was based on peer-to-peer communications where information is managed by members of the networks itself; communication is from processor to processor, rather than from processor to terminal.

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