IS 12327 : Part 3 : 1989 Title: Data Interchange on 130 mm Double Sided 3.8 tpmm High Density Flexible Disk Cartridge Using Modified Frequency Modulation Recording at 13 262 Ftprad (Part 3 Track Format B for 80 Tracks) Format: Print Pages: 10 Year: 1989 Publisher: Bureau of Indian Standards Availability: Out of Stock