One 4-GB DIMM. Dont really have a explanation for it just comes from previous experience
In OpenOffice Writer, you can insert comments with the Comment option under the Insert tab. Alternatively, you can use the Ctrl+Alt+N keys.
The answer that fills in the blank is orientation. It is because orientation does not provide all the details of what they are doing but a guideline of what they must do, in order for them to be guided on the things that they need to learn as they start. They require proper guidance which is the orientation before performing before hand. Especially when they are not familiar on what they need to do.
Well, I would say a web browser, like Mozilla Firefox, Safari for IOS, Windows Edge, Chrome, or Internet Explorer; and some anti-malware software, since there are multiple websites on the WWW that try to steal your information and give your device viruses.