 The level of access is at a higher level than that provided by BIOS and BDOS in the PC world; in fact, IOCS has no support for character-oriented I/O.Versions of IOCS existed for the IBM 705 III, 1401/1440/1460, 1410/7010, 7070/7072/7074, 7080 and 7040/7044/7090/7094.These systems heavily influenced the data management components of the operating systems for the System/360; the name IOCS was carried through in DOS/360 through z/VSE, with a distinction between Logical IOCS (LIOCS) and Physical IOCS (PIOCS).