ES421537A1 - Expandable function electronic calculator - Google Patents
Expandable function electronic calculatorInfo
- Publication number
- ES421537A1 ES421537A1 ES421537A ES421537A ES421537A1 ES 421537 A1 ES421537 A1 ES 421537A1 ES 421537 A ES421537 A ES 421537A ES 421537 A ES421537 A ES 421537A ES 421537 A1 ES421537 A1 ES 421537A1
- Authority
- ES
- Spain
- Prior art keywords
- unit
- electronic calculator
- numerical data
- cycle interval
- function electronic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0227—Cooperation and interconnection of the input arrangement with other functional units of a computer
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Calculators And Similar Devices (AREA)
- Executing Machine-Instructions (AREA)
- Control By Computers (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
An electronic calculator system implemented in a small number of semiconductor integrated circuit units containing memory means for storing numerical data and arithmetic means selectively coupled to the memory means for operating on numerical data, keyboard input means and including display means that respond to synchronized signals that occur in a certain cycle interval generated within a first of the units, characterized in that the calculator includes means for generating on said first unit a signal indicative of an internal operating condition of such unit and also having a selected synchronization ratio with respect to said cycle interval and means for coupling such a signal from said first unit to at least one other unit. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36098473A | 1973-05-16 | 1973-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES421537A1 true ES421537A1 (en) | 1976-05-16 |
Family
ID=23420183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES421537A Expired ES421537A1 (en) | 1973-05-16 | 1973-12-15 | Expandable function electronic calculator |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5645175B2 (en) |
| AU (1) | AU6212673A (en) |
| BE (1) | BE808776A (en) |
| BR (1) | BR7309825D0 (en) |
| DD (1) | DD110113A5 (en) |
| DE (1) | DE2423370A1 (en) |
| ES (1) | ES421537A1 (en) |
| FR (1) | FR2230259A5 (en) |
| GB (1) | GB1457260A (en) |
| IL (1) | IL43651A0 (en) |
| IT (1) | IT997915B (en) |
| NL (1) | NL7317190A (en) |
| SE (1) | SE7316952L (en) |
| ZA (1) | ZA739306B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1540923A (en) * | 1975-12-01 | 1979-02-21 | Intel Corp | Programmable single chip mos computer |
-
1973
- 1973-11-02 AU AU62126/73A patent/AU6212673A/en not_active Expired
- 1973-11-19 IL IL43651A patent/IL43651A0/en unknown
- 1973-11-30 IT IT54039/73A patent/IT997915B/en active
- 1973-12-06 ZA ZA739306A patent/ZA739306B/en unknown
- 1973-12-12 DD DD175297A patent/DD110113A5/xx unknown
- 1973-12-14 BR BR9825/73A patent/BR7309825D0/en unknown
- 1973-12-14 NL NL7317190A patent/NL7317190A/xx unknown
- 1973-12-14 SE SE7316952A patent/SE7316952L/sv unknown
- 1973-12-14 GB GB5804373A patent/GB1457260A/en not_active Expired
- 1973-12-15 ES ES421537A patent/ES421537A1/en not_active Expired
- 1973-12-18 BE BE138993A patent/BE808776A/en unknown
- 1973-12-20 FR FR7345798A patent/FR2230259A5/fr not_active Expired
- 1973-12-20 JP JP14296773A patent/JPS5645175B2/ja not_active Expired
-
1974
- 1974-05-14 DE DE2423370A patent/DE2423370A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU6212673A (en) | 1975-05-08 |
| IT997915B (en) | 1975-12-30 |
| DD110113A5 (en) | 1974-12-05 |
| NL7317190A (en) | 1974-11-19 |
| ZA739306B (en) | 1974-11-27 |
| JPS5011558A (en) | 1975-02-06 |
| JPS5645175B2 (en) | 1981-10-24 |
| SE7316952L (en) | 1974-11-18 |
| DE2423370A1 (en) | 1974-12-05 |
| FR2230259A5 (en) | 1974-12-13 |
| BE808776A (en) | 1974-04-16 |
| GB1457260A (en) | 1976-12-01 |
| BR7309825D0 (en) | 1975-02-04 |
| IL43651A0 (en) | 1974-03-14 |
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