Operating_systems-page58 - Jelena Mamčenko Operating...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Jelena Mamčenko Operating Systems Lecture Notes on Operating Systems 58 2-inch 1985 720 ← 5¼-inch Perpendicular 1986 ] 100 MiB ← 3½-inch HD 1987 1440 1.44 MB 3½-inch ED 1991 2880 2.88 MB 3½-inch LS-120 1996 120.375 MiB 120 MB 3½-inch LS-240 1997 240.75 MiB 240 MB 3½-inch HiFD 1998/99 150/200 MiB ] 150/200 MB Acronyms: DD = Double Density; QD = Quad Density; HD = High Density ED = Extended Density; LS = Laser Servo; HiFD = High capacity Floppy Disk ¹The marketed capacities of floppy disks frequently corresponded only vaguely to their their actual storage capacities; the 1.44 MB value for the 3½-inch HD floppies is the most widely known example. See reported storage capacity. Dates and capacities marked ? are of unclear origin and need source information; other listed capacities refer to: • For 8-inch: standard IBM formats as used by the System/370 mainframes and newer systems • For 5¼- and 3½-inch: standard PC formats, capacities quoted are the total size of all sectors...
View Full Document

This note was uploaded on 12/29/2011 for the course CSE 362 taught by Professor Mavin during the Spring '09 term at SUNY Stony Brook.

Ask a homework question - tutors are online