Explain in your own words why main memory is constrained in a mobile device and compare it to main memory on a desktop computer

because it stores the data and downloads and prevent overheating  

Explanation:

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.

answer7 pin connector;