The Initial Input Routine of the Parametron Computer PC-1

by Eiiti Wa Da

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Datum	Value	Source
TITLE	The Initial Input Routine of the Parametron Computer PC-1	user correction - Legacy Corrections
AUTHOR NAME	Eiiti Wa Da	user correction - Legacy Corrections
AUTHOR AFFIL	3	user correction - Legacy Corrections
ABSTRACT	Forty years ago, the PC-1, parametron computer 1, was born at Professor Hidetosi Takahasi's Laboratory. The logical elements of the PC-1 were parametrons, which supported majority logic. The memory system operated in a two frequency read/write scheme. The word selection mechanism applied error correcting code to decrease the number of elements. Most of the hardware technologies were created by Eiichi Goto. We studied the EDSAC computer precisely, however we developed our own architecture and programming system based upon our own philosophy. The machine instruction set was chosen to ease programming. The normal teletype on the market was employed, leaving the burden of code conversion tasks to software, which seemed to us to have had almost infinite abilities. However, the real memory capacity was indeed very small, which forced us to invent a clever way to implement things. In this paper, after introducing the functions of the initial input routine R0, examples of (i) code conversion t...	user correction - Legacy Corrections
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