The function of the cell membrane is to let things in and out of the cell. It's like a gate to the cell. Prokaryotic and eukaryotic cells have cell membranes.
JavaScript is also used in environments that are not web-based, such as PDF documents, site-specific browsers, and desktop widgets. Newer and faster JavaScript virtual machines (VMs) and platforms built upon them have also increased the popularity of JavaScript for server-side web applications.avaScript is also used in environments that are not web-based, such as PDF documents, site-specific browsers, and desktop widgets. Newer and faster JavaScript virtual machines (VMs) and platforms built upon them have also increased the popularity of JavaScript for server-side web applications.
Java Version in the Java Control Panel-Windows and Mac OS X. The Java version can be found in the Java Control Panel. 1  Find the Java Control Panel in Windows. 2  Find the Java Control Panel in Mac OS X. 3  Under the General tab in the Java Control Panel, the version is available through the About section.n order to use the command line tools, you will need to download the Java Development Kit (JDK). The JRE and JDK are separate and can coexist on your system. Only one JRE can be installed on Mac OS X. There can be multiple JDKs installed on a system, as many as you wish.