At the same time,the costs and overhead associated with developing and maintaining software device drivers for different combinations of operating system and I/O technology place heavy burdens on suppliers and users.

• 同时，为操作系统和I/O技术的各种不同组合开发和维护软件设备驱动程序有关的成本与开销，给供应商和用户都带来了沉重的负担。