/tmerk' / The Te
Ch Model Railroad
Club at
MIT, one of the wellsprings of
haCker Culture. The 1959 "Di
Ctionary of the TMR
C Language"
Compiled by Peter Samson in
Cluded several terms that be
Came basi
Cs of the ha
Ckish vo
Cabulary (see espe
Cially
foo,
mung, and
frob). By 1962, TMR
C' s legendary layout was already a marvel of
Complexity (and has grown in the thirty years sin
Ce all the features des
Cribed here are still present). The
Control system alone featured about 1200 relays. There were {s
Cram swit
Ch}es lo
Cated at numerous pla
Ces around the room that
Could be thwa
Cked if something undesirable was about to o
CCur, su
Ch as a train going full-bore at an obstru
Ction. Another feature of the system was a digital
Clo
Ck on the dispat
Ch board, whi
Ch was itself something of a wonder in those bygone days before
Cheap LEDS and seven-segment displays. When someone hit a s
Cram swit
Ch the
Clo
Ck stopped and the display was repla
Ced with the word "FOO" at TMR
C the s
Cram swit
Ches are therefore
Called "foo swit
Ches". Steven Levy, in his book "Ha
Ckers", gives a stimulating a
CCount of those early years. TMR
C' s Power and Signals group in
Cluded most of the early
PDP-1 ha
Ckers and the people who later ba
Came the
Core of the
MIT AI Lab staff. Thirty years later that
Conne
Ction is still very mu
Ch alive, and this di
Ctionary a
CCordingly in
Cludes a number of entries from a re
Cent revision of the TMR
C di
Ctionary (via the Ha
Cker Jargon File). [
Jargon File]
In addition suitable Contents:
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