One of the advantages of using Android is the possibility to use emulators on our PC with which we can run applications on our computer. And amongst them, we have to point out this Jar of Beans.
The portable emulator for Android Jelly Bean
The truth is that Android 4.1.1 is now quite outdated and this emulator doesn't update as often as others do, as is the case of BlueStacks (possibly the best Android emulator that we can download at present).
Nevertheless, the main advantage offered by JoB is that we can use it as a portable version, without having to install anything, therefore, we can carry it around on a USB stick and run it on any computer even if we don't have admin permissions to download and install apps.
In any case, it's a classic emulator that runs by default with a 1280x768 screen resolution. One of its most positive aspects is that it doesn't require a powerful computer to run it as we only need 1GB of RAM.
Therefore, if you're looking for a portable emulator that you can use to open the majority of APKs available to be downloaded from the Internet (many of them still run on Android 4.1), Jar of Beans is an excellent option.