SunOS is a version of the Unix operating system developed by Sun Microsystems for their workstation and server computer systems. The SunOS name is usually only used to refer to versions 1.0 to 4.1.4 of SunOS. These versions were based on BSD, while SunOS version 5.0 and later are based on UNIX System V Release 4, and are marketed under the brand name Solaris.

A parse tree (aka. parsing tree or concrete syntax tree) is an ordered, rooted tree that represents the syntactic structure of a string according to some context-free grammar.

Code signing is the process of digitally signing executables and scripts to confirm the software author and guarantee that the code has not been altered or corrupted since it was signed by use of a cryptographic hash. Microsoft Authenticode (TM) is Microsoft's implementation of digitally code signing executables.

The USRP series of software-defined radio devices, designed and developed by Ettus Research, are commonly used with GNU Radio, OpenBTS, LabView, and Matlab. The driver, UHD, is also FOSS, so you can program the radios directly through the driver's API.

The `<jsp:include>` element allows you to include either a static or dynamic resource in a JSP page.

Progressive enhancement uses web technologies in a layered fashion that allows everyone to access the basic content and functionality of a web page (regardless of browser) and providing an enhanced experience to those with better bandwidth, more advanced browser features or more experience.

Winlogon is the component of Microsoft Windows operating systems that is responsible for handling the secure attention sequence.

Client-side scripting generally refers to the class of computer programs on the web that are executed client-side, by the user's web browser, instead of server-side (on the web server). It is used to create dynamic web pages, Most popular client side scripting language is JavaScript.