You can hit Command-F to find anything on your Mac, or you can hit Command-Space to invoke Spotlight, which took over for Sherlock as the built-in searching system many moons ago. In Windows 8, you can use the Search “charm.”
On the iPhone and iPad, however, some might be a little confused. There’s no keyboard commands in iOS, and Apple has even moved the Search functionality in iOS 7 from the furthermost left icon page.
What’s an iPhone owner to do when she wants to search for that specific app that she’s buried in a folder somewhere on her device, or needs the phone number of her best friend, because she’s always just used Siri to call her and has no idea what her number actually is?