What does mean the com. prefix in some Android processes?
E.g.: com.whatsapp, com.google.android.gapps, com.android.mms, com.antivirus, etc.
com. prefix indicates the package name of android application(Since android based on JAVA: class-package concept).
Naming convention is adopted to avoid the name collision
Companies use their reversed Internet domain name to begin their package names—for example, com.whatsapp.mypackage for a package named mypackage created by a programmer at whatsapp.com
Name collisions that occur within a single company need to be handled by convention within that company, perhaps by including the region or the project name after the company name (for example, com.android.mms, com.antivirus).