Disk drives can be either synchronous or asynchronous depending on the driver used. The driver determines if a drive will use asynchronous or synchronous communications. The IDE driver on the 630 family supports asynchronous communications. In general, Performa computers with 68040 processors running System Software 7.5, or Performa Computers with PowerPC processors, can support asynchronous drive communications.
The following computers are in the Macintosh 630 family: Performa 630, Performa 635, Performa 636, Performa 637, Performa 638, LC 630, and Quadra 630.
Article Change History:
17 Mar 1995 - Corrected PowerPC wording.
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