JPS54139438A - Input terminal control unit - Google Patents

Input terminal control unit

Info

Publication number
JPS54139438A
JPS54139438A JP4722278A JP4722278A JPS54139438A JP S54139438 A JPS54139438 A JP S54139438A JP 4722278 A JP4722278 A JP 4722278A JP 4722278 A JP4722278 A JP 4722278A JP S54139438 A JPS54139438 A JP S54139438A
Authority
JP
Japan
Prior art keywords
control unit
constitution
bus
main body
control
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.)
Pending
Application number
JP4722278A
Other languages
Japanese (ja)
Inventor
Yoshiaki Sagawa
Hidemi Miura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4722278A priority Critical patent/JPS54139438A/en
Publication of JPS54139438A publication Critical patent/JPS54139438A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify the circuit constitution with reduction of the burden of the computer main body as well as to ensure an easy maintenance of the control unit at an optional time by providing the microprocessor to carry out the process for the input/output data including the error process.
CONSTITUTION: the control for the data transfer is carried out by microcomputer CPU25 via the microprogram incorporated into ROM27 between manual operation input part 1 and 5 such as the keyboard, the hand scanner or the like and computer main body input part 14. In such constitution, the number of the elements packed into the control unit is reduced with simplified and minituarized structure. Furthermore, the alteration and addition of the functions are facilitated owing to the microprogram control. Also, the maintenance work becomes possible easily when necessary with installation of connector 34 which can be connected directly to address bus A-BUS, data B-BUS and the like from outside.
COPYRIGHT: (C)1979,JPO&Japio
JP4722278A 1978-04-21 1978-04-21 Input terminal control unit Pending JPS54139438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4722278A JPS54139438A (en) 1978-04-21 1978-04-21 Input terminal control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4722278A JPS54139438A (en) 1978-04-21 1978-04-21 Input terminal control unit

Publications (1)

Publication Number Publication Date
JPS54139438A true JPS54139438A (en) 1979-10-29

Family

ID=12769150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4722278A Pending JPS54139438A (en) 1978-04-21 1978-04-21 Input terminal control unit

Country Status (1)

Country Link
JP (1) JPS54139438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045860A (en) * 1983-08-23 1985-03-12 Nippon Telegr & Teleph Corp <Ntt> Input and output controller
JPS6051963A (en) * 1983-08-30 1985-03-23 Nec Corp Input/output processing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161233A (en) * 1974-11-26 1976-05-27 Nippon Electric Co Shuhensochino seigyosochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161233A (en) * 1974-11-26 1976-05-27 Nippon Electric Co Shuhensochino seigyosochi

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045860A (en) * 1983-08-23 1985-03-12 Nippon Telegr & Teleph Corp <Ntt> Input and output controller
JPS6051963A (en) * 1983-08-30 1985-03-23 Nec Corp Input/output processing device
JPH0219497B2 (en) * 1983-08-30 1990-05-02 Nippon Electric Co

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