Data storage means having both fixed and removable record disk means
    9.
    发明授权
    Data storage means having both fixed and removable record disk means 失效
    具有两个固定和可移动记录磁盘的数据存储方式

    公开(公告)号:US3566381A

    公开(公告)日:1971-02-23

    申请号:US3566381D

    申请日:1967-09-15

    Applicant: IBM

    CPC classification number: G11B17/022 G11B5/5521 G11B17/038 G11B19/26

    Abstract: A DEVICE FOR MOVING A CARRIER EMPLOYS PERPENDICULARLY DISPOSED SHAFTS, ONE CARRYING A FLEXIBLE DISK AND THE OTHER SPACED WHEELS. A CARRIAGE IS MOUNTED TO ONE OF THE SHAFTS, WHICH IS THREADED, AND, WHEN ONE OF THE WHEELS IS MADE TO CONTACT THE FLEXIBLE DISK, THE CARRIAGE IS TRANSPORTED IN A DESIRED DIRECTION. WHEN USED IN A RANDOM ACCESS MAGNETIC DISK FILE, THE CARRIAGE SUPPORTS AT LEAST ONE MAGNETIC HEAD ASSEMBLY FOR BIDRIECTIONAL MOVEMENT RELATIVE TO THE MAGNETIC RECORD DISK. THE DISK FILE DISCLOSED HEREIN USES A FIXED MAGNETIC DISK AND A REMOVABLE, REPLACEABLE MAGNETIC DISK, BOTH SEATED TO THE SAME SPINDLE ASSEMBLY.

Patent Agency Ranking