Search results
Results from the WOW.Com Content Network
The IBM 700/7000 series is a series of large ... 7340 Hypertape. ... The 7070 and 7074 can be equipped with 7907 data channels to attach faster devices using a 9 ...
In 1961, IBM announced the IBM 1301-1 Disk Storage Unit, with a capacity of 28 million characters per module, replacing the IBM 7300 Disk Storage Units. The 1301 attaches to an IBM 7907 Data Channel via an IBM 7631-II File Control. In 1963, IBM announced the IBM 1302, with quadruple the capacity of the 1301.
The IBM 7340 "Hypertape" system was a magnetic tape data storage format designed to work with the IBM 7074, 7080 and 7090 computers that was introduced in 1961 and withdrawn in 1971. As a technology, it deviated in several ways from the then dominant IBM 7 track system. It distinguished itself by having higher capacity, faster data transfer ...
The IBM 7340 Hypertape drive, introduced in 1961, used a dual reel cassette with a 1-inch-wide (2.5 cm) tape capable of holding 2 million six-bit characters per cassette. [ citation needed ] In the 1970s and 1980s, audio Compact Cassettes were frequently used as an inexpensive data storage system for home computers , [ b ] or in some cases for ...
Products, services, and subsidiaries have been offered from International Business Machines (IBM) Corporation and its predecessor corporations since the 1890s. [1] This list comprises those offerings and is eclectic; it includes, for example, the AN/FSQ-7, which was not a product in the sense of offered for sale, but was a product in the sense of manufactured—produced by the labor of IBM.
IBM's first magnetic-tape data storage devices, introduced in 1952, use what is now generally known as 7-track tape. The magnetic tape is 1 ⁄ 2 inch (13 mm) wide, and there are six data tracks plus one parity track for a total of seven parallel tracks that span the length of the tape.
9-track tape drive used with DEC minicomputers Inside a 9-track tape drive. The vacuum columns are the two gray rectangles on the left. A typical 9-track unit consists of a tape transport—essentially all the mechanics that moves tape from reel to reel past the read/write and erase heads—and supporting control and data read/write electronics.
Bus and tag cables. Bus and Tag is an "IBM standard for a computer peripheral interface", [1] and was commonly used to connect their mainframe computers to peripheral devices such as line printers, disk storage, magnetic tape drives and IBM 3270 display controllers.