Personal Computer

rough initial stab at ...

Definition
Personal Computer or PC &#160; a computer designed for use by one person at a time. (definition needs improvement) compare to mainframe, pda, embedded computers "sub-varieties" &#160; desktops, portables, laptops

History
At first personal computers were considered "hobby" items. Enthusiasts built their own from kits. Later, especially once the early spreadsheets became available, companies began using them in offices. They were single user or "personal" computers &#160; as opposed to the mainframe, multi-user computers that were more prevalent at the time. Later as prices came down, commercially built personal computers became for affordable for home use.

Statistics
How many PCs worldwide? What percentage are Macs?

which computer is better for professional and why from Mac or PC?