Hardware Detail

Item Reference:	HW0146
Machine Type:	5444	Serial Number:
	Dolphin - disk drive for System/3
	Dolphin was announced in September 1969 as a feature for the IBM System/3 computer (1969 - 1985). Depending upon model the disk drive contained up to one fixed and one removable disk pack. The removable pack was designated IBM 5440 and contained a single platter. System/3 could be equipped with up to two 5444s, of which there were 3 models: Model 1 has one fixed disk and one removable disk each with 100 tracks per surface for a disk cartridge capacity of 1.23 MB Model 2 has one fixed disk and one removable disk each with 200 tracks per surface for a disk cartridge capacity of 2.46 MB Model 3 has only one removable disk with 200 tracks per surface for a disk cartridge capacity of 2.46 MB
Date of Origin:	1969	Donor:
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Location:	On Display - HLG03	Commissioned By: Museum	Until: