Operating system (OS)<span> software allows you to use your fingers, a mouse or other pointing device to select screen controls, such as buttons and scroll bars or pictures, also called Resource Manager. </span><span>Operating System manages all the Resources like Memory and Processor and all the Input output Devices, it manages all the Resources of the System. </span>
Answer:
RAM is a short abbreviation for Random Access Memory. It is the physical working memory used by your PC to temporarily store computer data. Your PC stores all open applications, files, and any other data into RAM for quick access. The more RAM you have installed, the more programs you can run at the same time.
B. spreadsheet is the answer