Microprogrammed computing device

US4007444A · kind A · utility

Assignee

• Institut Francais du Petrole des Carburants et Lubricants et Enterprise de Recherches et d'Activities Petroliers Elf · FR

Inventors

• Francois Anceau · Gières, FR
• Claude Beauducel · Hénonville, FR
• Pierre Courboulay · Paris, FR
• Jacques Cretin · Le Chesnay, FR

Key dates

• Filing date: Nov 13, 1975
• Grant date: Feb 8, 1977
• Expiry date: Nov 13, 1995

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/26
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Microprogrammed computing device comprising a data processing system, a central memory operatively connected thereto, means for exchanging data with peripheral devices, a system for controlling the execution of orders issued from the memory, a system for hierarchically classifying the tasks in a list and making the processing system available for the task having the first priority and a system for managing said list, means for testing the availability of said peripheral devices and means for adapting the processing system to each new task to which the first priority is given, whereby several computing and data exchange processes may be performed by the same device.