APPENDIX

Pep/9 Architecture

This appendix summarizes the architecture of the Pep/9 computer.

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Abbreviations for Control Characters

NUL

null, or all zeros

SOH

start of heading

STX

start of text

ETX

end of text

EOT

end of transmission

ENQ

enquiry

ACK

acknowledge

BEL

bell

BS

backspace

HT

horizontal tabulation

LF

line feed

VT

vertical tabulation

FF

form feed

CR

carriage return

SO

shift out

SI

shift in

DLE

data link ...

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