IT1027347B - Electronic computer using micro-programme routine stored in ROM - includes random access memory which is used to hold address instructions from keyboard - Google Patents

Electronic computer using micro-programme routine stored in ROM - includes random access memory which is used to hold address instructions from keyboard

Info

Publication number
IT1027347B
IT1027347B IT6714675A IT6714675A IT1027347B IT 1027347 B IT1027347 B IT 1027347B IT 6714675 A IT6714675 A IT 6714675A IT 6714675 A IT6714675 A IT 6714675A IT 1027347 B IT1027347 B IT 1027347B
Authority
IT
Italy
Prior art keywords
keyboard
rom
micro
programme
random access
Prior art date
Application number
IT6714675A
Other languages
Italian (it)
Original Assignee
Olivetti & Co Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olivetti & Co Spa filed Critical Olivetti & Co Spa
Priority to IT6714675A priority Critical patent/IT1027347B/en
Priority to US05/647,000 priority patent/US4091446A/en
Priority to DE19762601242 priority patent/DE2601242A1/en
Priority to FR7601245A priority patent/FR2298830A1/en
Priority to JP51005770A priority patent/JPS5199433A/ja
Priority to ES76444569A priority patent/ES444569A1/en
Application granted granted Critical
Publication of IT1027347B publication Critical patent/IT1027347B/en

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  • Input From Keyboards Or The Like (AREA)

Abstract

An electronic computer has facility for programme storage and a keyboard for data input. The main feature of the system is the ease with which a complex programme may be compile from a series of fundamental operations stored as micro-programmes in a ROM. Keyboard codes allow micro-programme steps to be entered. The system consists of a keyboard input and a printer output controlled by an input/output unit. Micro-programmes are stored in a read-only-memory, with up to three more ROM's available, to supply instructions for the operation of the central processor. A random access memory is used to store address instructions, that are entered through the keyboard, to provide access to the ROM.
IT6714675A 1975-01-24 1975-01-24 Electronic computer using micro-programme routine stored in ROM - includes random access memory which is used to hold address instructions from keyboard IT1027347B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT6714675A IT1027347B (en) 1975-01-24 1975-01-24 Electronic computer using micro-programme routine stored in ROM - includes random access memory which is used to hold address instructions from keyboard
US05/647,000 US4091446A (en) 1975-01-24 1976-01-07 Desk top electronic computer with a removably mounted ROM
DE19762601242 DE2601242A1 (en) 1975-01-24 1976-01-14 ELECTRON CALCULATOR WITH PROGRAM STORAGE
FR7601245A FR2298830A1 (en) 1975-01-24 1976-01-19 PROGRAMMABLE ELECTRONIC CALCULATOR
JP51005770A JPS5199433A (en) 1975-01-24 1976-01-21
ES76444569A ES444569A1 (en) 1975-01-24 1976-01-23 Desk top electronic computer with a removably mounted ROM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6714675A IT1027347B (en) 1975-01-24 1975-01-24 Electronic computer using micro-programme routine stored in ROM - includes random access memory which is used to hold address instructions from keyboard

Publications (1)

Publication Number Publication Date
IT1027347B true IT1027347B (en) 1978-11-20

Family

ID=11299965

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6714675A IT1027347B (en) 1975-01-24 1975-01-24 Electronic computer using micro-programme routine stored in ROM - includes random access memory which is used to hold address instructions from keyboard

Country Status (1)

Country Link
IT (1) IT1027347B (en)

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