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JPS56137440A - Program computer - Google Patents

Program computer

Info

Publication number
JPS56137440A
JPS56137440A JP3903680A JP3903680A JPS56137440A JP S56137440 A JPS56137440 A JP S56137440A JP 3903680 A JP3903680 A JP 3903680A JP 3903680 A JP3903680 A JP 3903680A JP S56137440 A JPS56137440 A JP S56137440A
Authority
JP
Japan
Prior art keywords
memory
cpu
character
code
display
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.)
Granted
Application number
JP3903680A
Other languages
Japanese (ja)
Other versions
JPH0122622B2 (en
Inventor
Takayuki Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP3903680A priority Critical patent/JPS56137440A/en
Publication of JPS56137440A publication Critical patent/JPS56137440A/en
Publication of JPH0122622B2 publication Critical patent/JPH0122622B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To display the result of calculation by using the desired and arbitrary character set, by adding small capacity ROM and mounting it, without changing the memory content of large capacity ROM including control program.
CONSTITUTION: Among the memory in CPU, the character pattern address memory ADR stores the memory address of other memory device storing the character pattern. The character patter used other than the ASCII character set for USA type information exchange standard code is reserved and ROMCG2 is prepared, and the memory CG2 is connected to CPU. Specific code is written in a part of the memory CG2 and the code is read out via the data line l1 and transferred to CPU, allowing to judges whether or not the memory CG2 is connected to the computer main body. When connected, the memory CG2 is used for display with priority.
COPYRIGHT: (C)1981,JPO&Japio
JP3903680A 1980-03-28 1980-03-28 Program computer Granted JPS56137440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3903680A JPS56137440A (en) 1980-03-28 1980-03-28 Program computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3903680A JPS56137440A (en) 1980-03-28 1980-03-28 Program computer

Publications (2)

Publication Number Publication Date
JPS56137440A true JPS56137440A (en) 1981-10-27
JPH0122622B2 JPH0122622B2 (en) 1989-04-27

Family

ID=12541877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3903680A Granted JPS56137440A (en) 1980-03-28 1980-03-28 Program computer

Country Status (1)

Country Link
JP (1) JPS56137440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6275584A (en) * 1985-09-30 1987-04-07 株式会社東芝 Character display controller
JPH04234086A (en) * 1990-07-23 1992-08-21 Bull Sa Data input/output device for information display and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6275584A (en) * 1985-09-30 1987-04-07 株式会社東芝 Character display controller
JPH04234086A (en) * 1990-07-23 1992-08-21 Bull Sa Data input/output device for information display and using method thereof

Also Published As

Publication number Publication date
JPH0122622B2 (en) 1989-04-27

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