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Site Map -- frobenius.com



Jack Harper's Main Web Site
WØYJ -- Vintage Radio Station
Johnson Valiant Transmitter
Hammarlund HQ-170A Receiver
Johnson Matchbox Antenna Tuner
Hammarlund HXL-One Amplifier
Hammarlund HQ-180 Receiver
Hammarlund HX-50 Transmitter
Hammarlund HK-1B Electronic Keyer
Stewart-Warner R-390A Receiver
Hammarlund HX-500 Transmitter
IBM 7090 Architecture
Console Details and Operation
Hardware Register Set
Binary Representation
Character Representation
Floating Point Operations
Instruction Formats
Index Registers and Loops
Indirect Addressing
Subroutine Linkage
Input/Output and Traps
Instruction Set
FAP Assembler
IBSYS Operating System
A Few Comments... An Answer to WHY?
Technical References
Index to IBM 7090/94 Architecture
LISP 1.5 on the Univac 1108
LISP System Source Browser
Symbolics LISP Machines
Bletchley Park Photos
Backyard Astronomy
Cave Astrola Telescopes
Interesting Places
Crypto Public PGP Key for Jack Harper





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