Priam Corp, San Jose, California has redesigned the integrated run length-limited controller for its 75Mb, 100Mb and 230Mb drives so as to double the data transfer rate, and is shipping the new controller at the same price as the previous ones: the improvement has been achieved by reducing the interleave ratio the distance that consecutive sections of data are spaced apart on the surface of the disk, from 2:1 to 1:1, and the effect is to improve the transfer rate to 700Kbytes-per-second; also, by putting in firmware to handle operating system translations instead of leaving the work to the system BIOS, Priam has made it possible for multi-user operating systems – Xenix, Pick, PC/MOS to make use of 100% of the available disk space rather than only 90% as previously.
