mece1ui@jetson.uh.edu (10/16/90)
After attending the Apple new products show, I obtain the following information about new MacLC and MacIIsi. MacLC 16-MHz 68020 020 Direct Slot 2MB RAM (expandable to 10MB) 512k VRAM (optional) Stereo sound input and output Apple IIe card (optional) Build in 8-bit Video output 40 MB internal drive (Two drives configuration is only for high education) MacIIsi 20-MHz 68030 68882 (optional) 2MB RAM (expandable to 17MB RAM) MacIIsi NuBus Adapter Card or 030 Direct Slot Adapter Card (both of them include 68882 co-processor) Buil in 8-bit Video output Stereo soud input and output 40 or 80 MB internal drive Both machines come with superdrives.
ewright@convex.com (Edward V. Wright) (10/16/90)
One important fact everyone seems to be overlooking in comparing the LC and IIsi. The LC motherboard has a 16-bit data bus. So don't assume that just because the IIsi is 20-MHz and the LC is 16, IIsi memory accesses will be only 25% faster. Because of the width of the data bus, they can actually be as much as 2* 20/16= 2.5 times faster.