GB1401204A - Variable function programmed calculator - Google Patents
Variable function programmed calculatorInfo
- Publication number
- GB1401204A GB1401204A GB3006872A GB3006872A GB1401204A GB 1401204 A GB1401204 A GB 1401204A GB 3006872 A GB3006872 A GB 3006872A GB 3006872 A GB3006872 A GB 3006872A GB 1401204 A GB1401204 A GB 1401204A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calculator
- instructions
- keyboard
- integrated circuit
- address
- 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
- 280000000275 Liquid Crystal Devices companies 0.000 abstract 1
- 281000109486 Texas Instruments companies 0.000 abstract 1
- 280000745722 Texas Instruments, Inc. companies 0.000 abstract 1
- 239000004020 conductors Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000006011 modification reactions Methods 0.000 abstract 1
- 239000004065 semiconductors Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
Abstract
1401204 Calculator TEXAS INSTRUMENTS Inc 27 June 1972 [19 July 1971] 30068/72 Heading G4A A calculator is formed on a semi-conductor integrated circuit chip and includes addressable read-only program storage, control circuits responsive to program instructions to control operations in the calculator, a memory providing a number of data registers each storing data serially by character parallel by bit, arithmetic means coupled to the data registers and the control circuits, input means, e.g. a keyboard, and an output display. The calculator is formed on a metal-insulatorsemi-conductor integrated circuit and is desorbed in some detail. The output display may be light emitting diodes, liquid crystal devices, cold cathode discharge elements &c., and as described is formed of multisegment digit display elements. The digit display elements and the keyboard are scanned by common timing signals, see Specification 1,401,265. Instruction execution is generally conventional, an instruction address normally being incremented, there being provision for address modification for jump instructions, and for maintaining the same address on "wait" instructions. An exemplary program is given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16356571A true | 1971-07-19 | 1971-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1401204A true GB1401204A (en) | 1975-07-16 |
Family
ID=22590581
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3006872A Expired GB1401204A (en) | 1971-07-19 | 1972-06-27 | Variable function programmed calculator |
| GB4462674A Expired GB1401265A (en) | 1971-07-19 | 1972-06-27 | Variable function programmed calculator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4462674A Expired GB1401265A (en) | 1971-07-19 | 1972-06-27 | Variable function programmed calculator |
Country Status (5)
| Country | Link |
|---|---|
| JP (4) | JPS5732375B1 (en) |
| DE (2) | DE2235430A1 (en) |
| FR (1) | FR2146368B1 (en) |
| GB (2) | GB1401204A (en) |
| IT (1) | IT965091B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5173856A (en) * | 1974-11-19 | 1976-06-26 | Texas Instruments Inc | Hyojisochito kiiboodo no sosashutsuryokunikanshi tasunokoodokumiawaseojusuru denshikeisanki aruiha deijitarushorikichitsupu |
| GB2083669B (en) * | 1980-09-05 | 1985-01-03 | Casio Computer Co Ltd | Key data entry system |
| JPS5940778U (en) * | 1982-09-09 | 1984-03-15 | ||
| JPS6270527U (en) * | 1985-10-23 | 1987-05-06 | ||
| JPH01166884U (en) * | 1988-04-28 | 1989-11-22 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL209920A (en) * | 1955-08-26 | |||
| US2989729A (en) * | 1958-12-10 | 1961-06-20 | Burroughs Corp | Keyboard checking apparatus |
| DE1183130B (en) * | 1963-09-12 | 1964-12-10 | Telefunken Patent | Arrangement for reading and decimal display of a result contained in a multi-decade counter |
| US3462742A (en) * | 1966-12-21 | 1969-08-19 | Rca Corp | Computer system adapted to be constructed of large integrated circuit arrays |
| US3566153A (en) * | 1969-04-30 | 1971-02-23 | Texas Instruments Inc | Programmable sequential logic |
-
1972
- 1972-06-27 GB GB3006872A patent/GB1401204A/en not_active Expired
- 1972-06-27 GB GB4462674A patent/GB1401265A/en not_active Expired
- 1972-07-18 IT IT5159972A patent/IT965091B/en active
- 1972-07-18 JP JP7196972A patent/JPS5732375B1/ja active Pending
- 1972-07-19 DE DE19722235430 patent/DE2235430A1/en not_active Ceased
- 1972-07-19 FR FR7225976A patent/FR2146368B1/fr not_active Expired
- 1972-07-19 DE DE19722265696 patent/DE2265696C2/de not_active Expired
-
1980
- 1980-12-03 JP JP17078780A patent/JPS6229832B2/ja not_active Expired
- 1980-12-03 JP JP55170788A patent/JPS595937B2/ja not_active Expired
-
1988
- 1988-06-23 JP JP63156001A patent/JPH0241062B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01140264A (en) | 1989-06-01 |
| FR2146368A1 (en) | 1973-03-02 |
| JPS5731071A (en) | 1982-02-19 |
| GB1401265A (en) | 1975-07-16 |
| JPS6229832B2 (en) | 1987-06-29 |
| FR2146368B1 (en) | 1973-07-13 |
| JPS595937B2 (en) | 1984-02-08 |
| DE2265696C2 (en) | 1984-09-13 |
| JPS5732375B1 (en) | 1982-07-10 |
| JPH0241062B2 (en) | 1990-09-14 |
| DE2235430A1 (en) | 1973-02-01 |
| IT965091B (en) | 1974-01-31 |
| JPS5727357A (en) | 1982-02-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |