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Primary Examiner: Shaw, Gareth D.
Assistant Examiner: Thomas, James D.
Attorney: Schaefer; I. J.

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Title: Desk-top electronic computer with MOS circuit logic

Abstract: A desk-top electronic computer with MOS circuit logic comprising an input device, an output device and a logic unit adapted to carry out the various operations of the computer. The logic unit is disposed on at least two MOS circuit chips synchronized by a main oscillator. Each MOS chip is provided with a corresponding timing circuit adapted to generate mutually coordinated timing signals. The logic unit includes a read only memory or ROM for storing the microinstructions commanding the various functions, a computing unit and a control unit adapted to permit the selection of the microinstructions from the ROM by addressed access for the purpose of supplying a sequence of microinstructions to the computing unit, access of the address and output of the microinstructions taking place through a single connection between the ROM and the control unit.

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Inventors: Faggian, Gian Franco (Ivrea (Turin), IT)

Application Number: 378354
Filing Date: 1973-07-11
Publication_date: 1976-02-17
Assignee: Ing. C. Olivetti & C., S.p.A. (Ivrea (Turin), IT)
Primary Class(es): 712/32 713/400, 713/502
Other Classes:
US Patent Ref:

3462742	Aug, 1969	Miller	340/172.
3475732	Oct, 1969	Ausan	340/172.
3579201	May, 1971	Langley	340/172.
3593313	Jul, 1971	Tomaszewski	340/172.
3646522	Feb, 1972	Furman	340/172.
3676656	Jul, 1972	Schmidt	235/156.
3702988	Nov, 1972	Haney	340/172.
3716843	Feb, 1973	Schmitt	340/172.
3757306	Sep, 1973	Boone	340/172.
3757308	Sep, 1973	Fosnick	340/172.
3760370	Sep, 1973	Cochran	340/172.
3800129	Mar, 1974	Umstatto	340/172.

Other Refs: Other References: Publication, "Intel MCS-4 Micro-Computer Set" Jan. 1972, Intel Corporation, No. 72/02/2.