Upgrading the usually speeds up the computer, while adding a(n) will increase the system’s storage capacity. Additional can improve the sound or video quality.

1st blank is RAM, 2nd is Hardrive, and 3rd is Expansion Cards

Explanation:

If you are using the PLATO, this is 100% correct. I tested it by myself.

a

explanation:

the numbe rof computers would affect the strength of network

the answer is b. executive summary. a management summary, or executive summary, is a short article or section of a document, produced for business purposes, that condenses a longer report or proposal or a group of related reports in such a way that readers can rapidly become familiar with a large body of material without having to read it all.