Refers to microcomputer systems that have a word size of sixteen bits. In other words, the central processing unit deals with instructions and data in chunks of sixteen-bit, and has internal buses and registers sixteen bits wide.

• 字长为16位的微型机系统。也就是说,中央处理机处理指令和数据是以16位为一组的。内部总线和寄存器也是16位。