User:Peter Flass

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I have been active in the computer field since 1967. I am fortunate to have worked with a variety of systems from various vendors:

  • IBM 7094, IBSYS.
  • IBM System/360 OS.
  • IBM 1620.
  • IBM 1130.
  • IBM System/360 DOS.
  • DEC PDP-10, TOPS-10.
  • Burroughs 5500, MCP.
  • XDS Sigma 7, BTM, UTS.
  • IBM System/360, /370, etc. VM.
  • IBM System/z, VM/XA and /ESA, z/VM, MVS/XA and /ESA, z/OS.
  • Intel x86 DOS, OS/2, Linux.
  • various others, including DEC PDP-8, PDP-11, 1401, Univac 1108, IBM System/7.

Computer Interests[edit]

  • The PL/I programming language. I have been a PL/I enthusiast since 1967. I am an evangelist for the language, and also work to retrieve old PL/I software and documentation to make it accessible on the web. I manage"The PL/I Language", a website devoted to PL/I. I have a large collection of PL/I books and materials, and hope eventually to write a history of the language.
  • OS/2. I started using OS/2 2.0 at introduction. I have been an OS/2 supporter and member of Team-OS/2. I have recently started using eCS.
  • I am an editor for the Open Directory Project in the previous two categories.
  • Since retirement in 2010 I have written a PL/I compiler, and founded and run Iron Spring Software. I hope to promote use of PL/I and maybe eventually make some money.
  • Software Archeology. I would like to revive the Multics OS in some fashion, either via an emulator or, preferably, a port to x86 architecture.
  • I have been a contributor to Wikipedia since 2008, mostly minor changes to articles in my areas of interest, and occasional articles on subjects where I have some knowledge and Wikipedia has no information.
This user is a member of the
New York State WikiProject.
Desktop computer clipart - Yellow theme.svg This user is a member of WikiProject Computing.
PL/1-N This user is a native PL/1 programmer.
asm-4 This user is an expert assembly language programmer.

Other Interests[edit]

  • Grandchildren
  • Genealogy
  • History, Archeology

Lately I have been enjoying taking (not-very-good) photos of local historical sites, some of which I upload to Wikipedia. If anyone wants to take a better photo, you won't hurt my feelings if you replace mine.


Iroquois references[edit]

Saratoga County references[edit]


Meta-Symbol is the name of a family of assembler programs from Scientific Data Systems for the SDS 9 Series and SDS Sigma series computers.

Meta-Symbol assemblers were meta-assemblers— "A program that accepts the syntactic and semantic description of an assembly language, and generates an assembler for that language."[1]

External links[edit]


  1. ^ "meta-assembler". Retrieved Dec 23, 2015. 

3270 keyboard[edit]