The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 1988
Filed:
Jul. 20, 1983
Masaharu Iwanaga, Kamakura, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A data processing system in which, when a magnetic tape device is required for execution of a job, a group of magnetic tape devices is designated and an appropriate one of the magnetic tape devices in the designated group is selected and allocated to the job. In order to start the execution of the job as early as possible, status data indicating whether a magnetic tape is loaded in a device and is being rewound or not is read, and one of the magnetic tape devices in the designated group, which is not loaded with a magnetic tape, is selected to have a top priority. In the absence of such a device, a magnetic tape device loaded with a magnetic tape which is not being rewound is selected in preference to the others.