2 ND G ENERATION (32- BIT ) M OTOROLA 68000 Major architectural step in microprocessors: First 32-bit architecture initial 16-bit implementation First flat 32-bit address Support for paging General-purpose register architecture Loosely based on PDP-11 minicomputer First implementation in 1979 68,000 transistors < 1 MIPS (Million Instructions Per Second) Used in Apple Mac Sun, Silicon Graphics, & Apollo workstations
{}