I would recommend Windows OS for grandma because it is highly efficient and easy to use.
An operating system (OS) can be defined as a system software that is pre-installed on a computing device, so as to manage random access memory (RAM), software applications, computer hardware and all user processes.
In Computer technology, the three (3) most common operating systems are:
In conclusion, an operating system (OS) that I would recommend for grandma is Windows OS because it is highly efficient and easy to find in the market.
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