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 keyboardInfo
- 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
Links
Landscapes
- 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.
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) |
-
1975
- 1975-01-24 IT IT6714675A patent/IT1027347B/en active
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