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    Information Research Services Updated: 19 November 1997
         
             
                 
              April 1970:
The
PDP-11/20, the first of DIGITAL's 16-bit family of machines, is delivered.
                     
              1971:
RSTS-11, a timesharing operating system for the PDP-11, is introduced.
                     
              1971:
The
PDP-11/45, the most powerful PDP-11 family member to date is introduced. The PDP-11 was featured in Garry Trudeau's Doonesbury comic strip.
                     
              1971:
The
RTM (PDP-16) is introduced.
                     
              1972:
The
PDP-16/M is introduced as the first "sub-minicomputer" developed by DIGITAL.
                     
              1972:
The
PDP-11/40 is introduced.
                     
              1972:
DIGITAL introduces the
PDP-11/05 and PDP-11/10 as the first "inexpensive" PDP-11s.
                     
              May 1973:
RSX-11D, a real-time operating system for online data acquisition, monitoring and control on the PDP-11, is introduced.
                     
              July 1973:
RT-11, a real-time operating system for monitoring and control, is introduced.
                     
              1974:
RSX-11M, a real-time operating system for online control, is introduced for use on the PDP-11.
                     
              February 1975:
LSI-11, DIGITAL's first 16-bit microcomputer, is introduced.
                     
              February 1975:
The powerful
PDP-11/70 is added to the PDP-11 family.
                     
              1975:
The
PDP-11/34 is delivered.
                 
              March 1977:
DIGITAL announces a new mid-range price/performance system, the
PDP-11/60.
                     
              March 1979:
The
F-11 microprocessor is announced.
                 
              March 1979:
The
PDP-11/23 is introduced.
                 
              November 1979:
The
PDP-11/44 ships.
                     
              March 1981:
PDP-11/24 is introduced.
                     
              May 1982:
DIGITAL introduces a range of new
personal computers.
                     
              November 1985:
Introduction of the
MicroPDP-11/83, the most powerful Q-bus 16-bit wordlength computer in DIGITAL's history.
                     
              May 1990:
The 20th anniversary of the first PDP-11 computer is marked by the introduction of two new PDP-11 systems: the MicroPDP-11/93 and the
PDP-11/94.