+
+<li>Hadoop (computation system):
+<ul class="org-ul">
+<li>Many individual connected computers behave as one big
+computer. System is horizontally linearly scalable.
+</li>
+<li>Programming abstraction and execution model that naturally divides
+problems te be solved in parallel and result easily combined.
+</li>
+<li>Data is spread across nodes, automatic failover, built in
+resiliency.
+</li>
+<li>Small pieces of code are automatically transferred to the node
+that contains relatively big data that needs processing (network
+efficiency).
+</li>