A number whose powers are used to represent other numbers (e.g. base 10 = decimal representation)

Use this tag for questions related to a Web-development Server, i.e. the backend/server side of a web application, when it comes to its development.

RPI QUESTIONS MUST BE PROGRAMMING RELATED. The Raspberry Pi 2 is a quad-core, ARMv7 instruction set CPU with 1GB of RAM. See the related StackExchange site at https://raspberrypi.stackexchange.com. Also see the first edition's tag at https://stackoverflow.com/questions/tagged/raspberry-pi .

Anything related to disk-like storage media, like hard-disks, CDs, DVDs, etc. By extension it could be applied to other mass storage media that are commonly referred as "disks", like SSD, flash cards, etc.

For questions regarding implementations or algorithms for calculating cumulative sums (also known as running totals). Always add the tag for the language/platform!

The Office 365 API lets developers build apps that use data stored within Office365. These can be stand-alone apps or plugins within the Office365 web apps.

Masonry is a dynamic grid layout plugin for jQuery

Apache Mesos is a cluster manager that provides an efficient, scalable, and robust way to share resources (CPUs, memory, disk, ports, et.) across frameworks or applications that are distributed across a cluster of machines. Mesos can be thought of as a kernel for the data center that provides a unified view of resources on all nodes and seamless access to these resources.

HttpHandlers are classes that implement the IHttpHandler and IHttpAsyncHandler interfaces. This section describes how to create and register HttpHandlers and provides examples of a synchronous handler, an asynchronous handler, and a handler factory.

Expression Blend is a visual design tool used to create WPF, Silverlight, and Windows Phone 7 application user interfaces.

LIBSVM is a library for Support Vector Machines