I'd suggest you perhaps review the impact systems make by reviewing google search engine, facebook app platform, adroid/ios/windows8 apps and their intricacies.

I'd suggest you perhaps review the impact systems make by reviewing google search engine, facebook app platform, adroid/ios/windows8 apps and their intricacies. After all, these are the stuff people use daily. You'd have a better chance if you go into high and low details of implementations ex. algorithms, math and relevant areas related per system.