How many bytes were in a floppy disk?
1,474,560 bytes
The unformatted capacity of 3½-inch double sided high density floppy disk is 2.0 megabytes; in its most common format it has a capacity of 1,474,560 bytes or 1.47 MB (simply dividing by 1,000,000).
How much did a floppy disk cost?
Some companies, such as Digital Equipment Corp. with its DEC Rainbow, introduced their own noncompatible 5.25-inch floppy drives. They were single-sided but with twice the density, and in 1983, a single box of 10 disks cost $45.
When did floppy disks go out?
The first commercial floppy disks, developed in the late 1960s, were 8 inches (203.2 mm) in diameter; they became commercially available in 1971 as a component of IBM products and then were sold separately starting in 1972 by Memorex and others.
How much did the floppy disk cost?
It could be used with either a hard or soft sectored controller, and storage capacity was listed as 90k (single density) or 113k (double density). The drive went on sale in late 1976 at a list price of $400, with a box of ten disks at $60.
How much space is on a floppy disk?
Normal floppy disks are 1.44Mb. When windows formats the disk, it creates a filesystem on the disk that only leaves 1.38Mb of usable space.
What are the dimensions of a floppy disk?
Floppy disk size is often referred to in inches, even in countries using metric and though the size is defined in metric. The ANSI specification of 31⁄2-inch disks is entitled in part “90 mm (3.5 inch)” though 90 mm is closer to 3.54 inches. Formatted capacities are generally set in terms of kilobytes and megabytes.
How many bytes are in a floppy disk?
Floppy disks and controllers use physical sector sizes of 128, 256, 512 and 1024 bytes (e.g., PC/AX), whereby formats with 512 bytes per physical sector became dominant in the 1980s.
How much can a floppy disk hold?
The smallest format of a floppy disk can hold 79.75 kilobytes, while the largest capacity of a magnetic floppy disk stores 2.88 megabytes. The storage capacity of a floppy disk depends on the type of the disk being used.