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The Macintosh Hard Disk 20 is the first hard drive developed by Apple Computer specifically for use with the Macintosh 512K. Introduced on September 17, 1985, it was part of Apple's solution toward completing the Macintosh Office (a suite of integrated business hardware & software) announced in January 1985.
The Macintosh can only support one external drive, limiting the number of floppy disks mounted at once to two, but both Apple and third party manufacturers developed external hard drives that connected to the Mac's floppy disk port, which had pass-through ports to accommodate daisy-chaining the external disk drive. Apple's Hard Disk 20 can ...
The same drive mechanism would also be offered 6 months later as a built-in drive option on the Macintosh II and SE. It had two standard Centronics 50-pin connectors, one for the System and one for daisy-chaining additional SCSI devices and a SCSI ID selection switch. An external terminator was required if it was the only SCSI device connected.
The system was equipped with four 50-pin Apple II bus-compatible slots for expansion cards. External 5.25" and 8" floppy disk drive peripherals (made by Fujitsu) were available for the Concept. The 8" drive had a formatted capacity of 250 kB. The 5.25" drive was read-only, and disks held 140kB. The video card was integrated in the monitor's ...
2009 - Western Digital is the first to offer a 1 TB hard drive in a 2.5 inch form factor. [57] 2009 – Western Digital ships first HDD with dual stage piezoelectric actuator [58] 2010 – First hard drive manufactured by using the Advanced Format of 4,096‑byte sectors instead of 512‑byte sectors. [59]: Overview
2 Hard disk drives. 3 Optical drives. ... View history; General What links here; ... Macintosh 800K External Drive; Disk 5.25; Apple 3.5 Drive;
Back up or add extra storage to your MacBook or iMac - the best Mac external hard drives are super-versatile Skip to main content. 24/7 Help. For premium support please call: 800-290 ...
The ProFile (codenamed Pippin [6]) is the first hard disk drive produced by Apple Computer, initially for use with the Apple III. [1] The original model had a formatted capacity of 5 MB and connected to a special interface card that plugged into an Apple III slot.