Tom Yager writes: "Like it or not, buyers of x86 servers, clients, and workstations face a major platform shift as the 32-bit CPUs, operating systems, and applications slowly fade into history. That historic migration will have dramatic impact. After all, 64-bit computing revolutionized RISC-based UNIX systems, allowing them to step into roles dominated by mainframes and minicomputers. Something similar is sure to occur with PC servers as they muscle up with the huge horsepower and memory elbow room inherent in 64-bit computing."