The endoplasmic reticulum is only one component of a cell. 1  The following cell structures can also be found in a typical animal eukaryotic cell: 2  Centrioles - cylindrical groupings of microtubules found in animal cells but not plant cells. They help to organize spindle fibers during cell division.
Android application package (APK) is the package file format used by the Android operating system for distribution and installation of mobile apps and middleware. The files that contain the .apk file extension store the files that are needed to run a single Android application on an Android mobile device.
Apple Push Notification Service (APNS) is a service from Apple that enables a user or service to send push notification messages to Apple iOS and Mac OS X apps. APNS debuted for the Apple iPhone with the release of Apple's iOS 3 update in June 2009. The Apple Push Notification Service has since been added as an API (application program interface) to the Mac OS X operating system as of the 10.7 Lion release. Apple refined its APNS support on Mac OS X in 2012 with the addition of the Notification Center in the 10.8 Mountain Lion operating system release.