GB1388594A - Digit limitation in a digital electronic computer - Google Patents
Digit limitation in a digital electronic computerInfo
- Publication number
- GB1388594A GB1388594A GB5939072*A GB5939072A GB1388594A GB 1388594 A GB1388594 A GB 1388594A GB 5939072 A GB5939072 A GB 5939072A GB 1388594 A GB1388594 A GB 1388594A
- Authority
- GB
- United Kingdom
- Prior art keywords
- digital electronic
- electronic computer
- digit
- limitation
- digit limitation
- 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
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
- G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
- G06K13/06—Guiding cards; Checking correct operation of card-conveying mechanisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
- G06F9/4482—Procedural
- G06F9/4484—Executing subprograms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Human Computer Interaction (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Computer Hardware Design (AREA)
- Artificial Intelligence (AREA)
- Complex Calculations (AREA)
- Calculators And Similar Devices (AREA)
- Shift Register Type Memory (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
1388594 Digital calculator ING C OLIVETTI & C SpA 19 April 1972 [22 April 1971] 59390/72 Divided out of 1388593 Heading G4A The subject matter of this Specification is identical to that of Specification 1,388,593, but the claim relates to a calculator having means to limit to a predetermined number the number of digits used in calculations by discarding digits of low significance.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT6833671 | 1971-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1388594A true GB1388594A (en) | 1975-03-26 |
Family
ID=11309023
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5939072*A Expired GB1388594A (en) | 1971-04-22 | 1972-04-19 | Digit limitation in a digital electronic computer |
GB5939172*A Expired GB1388595A (en) | 1971-04-22 | 1972-04-19 | Separation of exponent from mantissa preparatory to the conversion from floating point to fixed point |
GB5939272*A Expired GB1388596A (en) | 1971-04-22 | 1972-04-19 | Conversion from fixed to floating point in electronic computers |
GB5939372*A Expired GB1388597A (en) | 1971-04-22 | 1972-04-19 | Read write structure for programme cards |
GB1822472A Expired GB1388593A (en) | 1971-04-22 | 1972-04-19 | Output format control for electronic computers |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5939172*A Expired GB1388595A (en) | 1971-04-22 | 1972-04-19 | Separation of exponent from mantissa preparatory to the conversion from floating point to fixed point |
GB5939272*A Expired GB1388596A (en) | 1971-04-22 | 1972-04-19 | Conversion from fixed to floating point in electronic computers |
GB5939372*A Expired GB1388597A (en) | 1971-04-22 | 1972-04-19 | Read write structure for programme cards |
GB1822472A Expired GB1388593A (en) | 1971-04-22 | 1972-04-19 | Output format control for electronic computers |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA978653A (en) |
CH (1) | CH550438A (en) |
DE (1) | DE2220329C3 (en) |
FR (1) | FR2136620A5 (en) |
GB (5) | GB1388594A (en) |
SU (1) | SU568398A3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4036430A (en) * | 1976-05-13 | 1977-07-19 | Ebco Industries, Ltd. | Manually operable card reader |
GB2142176A (en) * | 1983-06-24 | 1985-01-09 | Hawker Siddeley Revenue Contr | Read and erase device |
GB2241810A (en) * | 1990-03-09 | 1991-09-11 | Mars Inc | Data card reader |
US5619198A (en) * | 1994-12-29 | 1997-04-08 | Tektronix, Inc. | Number format conversion apparatus for signal processing |
US6263426B1 (en) | 1998-04-30 | 2001-07-17 | Intel Corporation | Conversion from packed floating point data to packed 8-bit integer data in different architectural registers |
US6266769B1 (en) | 1998-04-30 | 2001-07-24 | Intel Corporation | Conversion between packed floating point data and packed 32-bit integer data in different architectural registers |
DE10056047C1 (en) * | 2000-11-11 | 2002-04-18 | Bosch Gmbh Robert | Automatic conversion of arithmetic term from floating to fixed point arithmetic involves combining operand, result normalizing factors into constants until number of constants minimized |
-
1972
- 1972-04-19 GB GB5939072*A patent/GB1388594A/en not_active Expired
- 1972-04-19 GB GB5939172*A patent/GB1388595A/en not_active Expired
- 1972-04-19 GB GB5939272*A patent/GB1388596A/en not_active Expired
- 1972-04-19 GB GB5939372*A patent/GB1388597A/en not_active Expired
- 1972-04-19 GB GB1822472A patent/GB1388593A/en not_active Expired
- 1972-04-21 FR FR7214312A patent/FR2136620A5/fr not_active Expired
- 1972-04-21 SU SU7201782279A patent/SU568398A3/en active
- 1972-04-21 DE DE2220329A patent/DE2220329C3/en not_active Expired
- 1972-04-21 CH CH597872A patent/CH550438A/en not_active IP Right Cessation
- 1972-04-24 CA CA140,363A patent/CA978653A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH550438A (en) | 1974-06-14 |
GB1388597A (en) | 1975-03-26 |
GB1388595A (en) | 1975-03-26 |
GB1388593A (en) | 1975-03-26 |
DE2220329C3 (en) | 1982-02-11 |
GB1388596A (en) | 1975-03-26 |
FR2136620A5 (en) | 1972-12-22 |
DE2220329B2 (en) | 1981-06-11 |
DE2220329A1 (en) | 1972-10-26 |
SU568398A3 (en) | 1977-08-05 |
CA978653A (en) | 1975-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |