The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 1986
Filed:
Feb. 10, 1986
Applicant:
Inventor:
Shosuke Mori, Tokyo, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
An information processor with a read only memory ROM stores a plurality of initial program loader (IPL) programs. The ROM memory has address inputs divided into two parts used to access each IPL program. One part of the address inputs of the ROM memory is connected to an address bus from a central processing unit (CPU) in order to be used to access the contents of one of the programs. The other part of the address inputs of said ROM memory is connected to an IPL setting part or switching which sets or selects a desired one of said plurality of IPL programs. The IPL setting part includes a plurality of switches connected to upper bit terminals of the ROM address inputs.