Class <em>t</em><em>e</em><em>m</em><em>p</em><em>l</em><em>a</em><em>t</em><em>e</em><em>s</em> allow you to create one version of a class, without having to replicate code to handle multiple data types.
Answer:
operating system
Explanation:
There are a lot of operating systems in the market. Ubuntu, red hat, windows, apple Macintosh etc. The choice of an operating system changes all the version of software used in the system. Therefore, while choosing a computer one must be aware of the operating system used in it.
Computer networks allow an unlimited amount of computers to communicate with each other. This is especially useful in enterprise environments, as technicians have to deal with hundreds of computers at a time. Computer networks make it easier to share files, increase storage capacity, better communication, easier to to control computers remotely, easier to share resources, ability to share a single internet connection on multiple devices. Computer networks also have a lot of cost benifits too, as network administration is centralised, meaning that less IT support is required, and you can cut costs on sharing peripherals and internet access.
Hopefully this helps you out!