Bruce Zu BruceZu

#System Design Interview Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

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	X11, or XWindows as it is known is the graphical interface for Unix/Linux,
	where Quartz (including Quartz Extreme) is the graphical interface layer for OSX,
	the Finder is for OS9 and below,
	and Windows is (or rather, was) for DOS.

	x11 : Unix/Linux
	Quartz, Quartz Extreme : OSX
	Finder : OS9 and below
	Windows : DOS