Accession Number : AD0672713

Title :   INCREASED CAPACITY MEMORY UNITS WITH UNIPOLAR INFORMATION RECORDING (ZAPOMINAYUSHCHYE USTROYSTVA POVYSHENNOY YEMKOSTI S UNIPOLYARNOY ZAPISIYU INFORMATSII),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Eremenko,I. V. ; Smirnov,V. B.

Report Date : 24 JAN 1968

Pagination or Media Count : 14

Abstract : The feasibility of increasing the capacity of magnetic memories with mobile information carriers is discussed. The mere enlargement of the capacity must also be followed by an increase in the number of autonomous input and output information channels and a decrease in the energy needed for the recording of one bit of information. Among other aspects, the article discusses increases in drum width, describes briefly the unipolar principle for recording and reading of information, and presents a preliminary calculation and modeling of the magnetic circuit of a new magnetic head (remagnetization is carried out by the basic magnetic flux and not by the stray field). While the recording head of the 'Ural-1' computer requires 6.3 mW of power for the recording of one binary sign, the newly designed head for unipolar registration requires only approximately .002 mW to do the same job. On the other hand, as a result of a reduction from 1 to 0.01 sq mm in the area needed for the registration of one pulse, the capacity of the proposed drum is 200 times the capacity of the existing 'Ural-1' drum.

Descriptors :   (*MEMORY DEVICES, *MAGNETIC RECORDING SYSTEMS), FEASIBILITY STUDIES, DIGITAL COMPUTERS, MAGNETIC TAPE, USSR

Subject Categories : Computer Hardware
      Recording and Playback Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE