Make recommendations, with justifications, of which you would choose for a smallmedium or large organization. (a) Operating

Question:

Make recommendations, with justifications, of which you would choose for a small–medium or large organization.
(a) Operating system: Microsoft /Windows XP/Vista/Server or Linux (open-source) for server and desktop clients.
(b) Browser: Internet Explorer browser or rivals such as Mozilla Firefox or Google Chrome which is part based on open source.