There is no neat distinction between operatingsystemsoftware and the software that runs on top of it.
操作系统软件与在其上面运行的软件之间的区分并不是一清二楚的。
2
Like an appliance, the application and all prerequisite middleware and operatingsystemsoftware is all pre-installed and configured.
与设备类似，应用程序和所有先决中间件和操作系统软件都是预安装和预配置的。
3
This makes sense for both mainframes and personal computers, because hardware or operatingsystemsoftware cannot reasonably be added without shutting down the machine.