Technical information

Features and Specifications
Diskette Standards
To get the best performance from your diskette drives, use
high-quality diskettes (such as IBM diskettes) that meet or exceed
the following standards:
1MB, 3.5-inch, unformatted diskette:
ANSI (American National Standards Institute) X3.137
ISO (International Standards Organization) 8860
ECMA (European Computer Manufacturers Association) 100
2MB, 3.5-inch, unformatted diskette:
ANSI X3.171
ISO 9529
ECMA 125
Note:
In some country, 4MB diskettes can
be used when the diskette drive
option is installed.
4MB, 3.5-inch, unformatted diskette:
ANSI Standard (under proposal at the time of printing)
ISO 10994 (Type 303)
ECMA 147
254 IBM ThinkPad 755CX User's Guide