Under MS-DOS versions 1 and 2, the number of files that can be open concurrently when using FCBs is unlimited. (This is not true under MS-DOS versions 3.0 and later, especially if networking software is running.)Under MS-DOS versions 1 and 2, the number of files that can be open concurrently when using FCBs is unlimited. (This is not true under MS-DOS versions 3.0 and later, especially if networking software is running.)
File-access methods using FCBs are familiar to programmers with a CP/M background, and well-behaved CP/M applications require little change in logical flow to run under MS-DOS.
MS-DOS supplies the size, time, and date for a file to its FCB after the file is opened. The calling program can inspect this information.