> These attributes were retrofitted onto the existing directory structure by taking over the high bits of the eleven filename characters! That's why they are na

> These attributes were retrofitted onto the existing directory structure by taking over the high bits of the eleven filename characters! That's why they are named F1 through F8 (high bits of the eight-character file base name) and T1 through T3 (high bits of the three-character extension, also known as the file type). > You can infer from this that CP/M file names were limited to 7-bit ASCII. Programmers really took the time to put every available bit to use back then.