Browse Prior Art Database

Data Transferring Techniques

IP.com Disclosure Number: IPCOM000084010D
Original Publication Date: 1975-Sep-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 13K

Publishing Venue

IBM

Related People

Balcezak, WK: AUTHOR

Abstract

Transferring data stored on a first magnetic record to a second magnetic record with a word processing system having a single magnetic record reader/recorder is accomplished, by buffering groups of segments of the data with a text storage buffer included in the system. Upon entry of the system into a transfer mode, a display device prompts the operator to load the first record onto the reader/recorder. A group of segments of data are read from this record into the buffer.

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Data Transferring Techniques

Transferring data stored on a first magnetic record to a second magnetic record with a word processing system having a single magnetic record reader/recorder is accomplished, by buffering groups of segments of the data with a text storage buffer included in the system. Upon entry of the system into a transfer mode, a display device prompts the operator to load the first record onto the reader/recorder. A group of segments of data are read from this record into the buffer.

The operator is then prompted by the display, to load onto the reader/recorder the second record to which the data is to be transferred. Upon transfer of the data from the buffer to the second record the operator is prompted to reload the first record, so that the next group of segments can be transferred. Nondestructable identifying codes on the records allow the system to prompt the operator, if the wrong record is loaded onto the reader/recorder.

A data packing technique is employed to minimize the number of times the magnetic records must be exchanged on the reader/recorder. A variable number of segments are read from the first record and stored in the buffer until the buffer is full, before a change of records is prompted. The data is packed into the buffer during this loading, with empty segments or large empty spaces within segments being discarded, rather than being buffered for transferring to the second record.

The operator may qualify the transfer to allow only certain categories of data to be transferred from the first to the second record. For example, if files of names, addresses and occupations are stored on the first record it may be d...