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A cable could have 5.25-inch style connectors, 3.5-inch style connectors, or a combination. After IBM introduced the "twist" to floppy cables, and when both 5.25-inch and 3.5-inch drives were in common use, many cables had four connectors: one of each type before the twist, and one of each type after the twist.
At introduction, the computer list price was US$1599. [6] For interchange of data with desktop systems, Tandy later made available an external 5.25-inch diskette drive. Later revised designs were the 1400 FD, which was lighter, omitted the composite video port, and had an external floppy drive connector.
The original model, retrospectively called the Pivot I, [6] was unveiled at COMDEX/Spring '84 in May 1984 and released in November that year. [7] [8] The Pivot I has one 5.25-inch floppy drive, 256 KB of RAM, and an LCD capable of displaying bitmapped graphics at an abridged resolution of 480 by 128 pixels or text at 80 columns by 16 lines.
The desktop computer hard-drive connector (AMP Mate-n-Lok 1-480424-0 power connector) is standard on all 5.25-inch floppy drives, 3.5-inch PATA and non-SCA SCSI disk drives; however, newer SATA disk drives employ a more advanced interconnection with 15 contacts. These advanced connection systems were first developed by Molex and other connector ...
8-inch floppy disk, inserted in drive, (3½-inch floppy diskette, in front, shown for scale) 3½-inch, high-density floppy diskettes with adhesive labels affixed The first commercial floppy disks, developed in the late 1960s, were 8 inches (203.2 mm) in diameter; [4] [5] they became commercially available in 1971 as a component of IBM products and both drives and disks were then sold ...
In 1979, Tandon introduced the TM-100 diskette drive, a 5.25" unit with 40 track support as opposed to the Shugart SA-400's 35 tracks. When Tandy introduced the TRS-80 Model III in 1980, they equipped the computer with TM-100s. The following year, Tandon obtained an even more lucrative contract when IBM released its Personal Computer.
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