The DirectX Diagnostic Tool which allows support staff that displays your hardware information and limited information on graphics drivers.
This is another diagnostic tool that gives information on your installed and running applications, Windows settings, recent crashes, drivers and more.
This is an abbreviation for Virtual Private Network. If you are experiencing network issues, they can commonly be caused by added latency as a result of using an out-of-state or international VPN. In some cases, it may be advisable to temporarily disable your VPN to mitigate network/connection issues.
This is an abbreviation for Central Processing Unit. This term is used to refer to the processor in your computer, which is essentially the "brain".
GPU / Video Card
This is an abbreviation for Graphic Processing Unit. Some people tend to use this term to describe the video card as a whole, while in reality a GPU is a component within your video card. Nevertheless, you may see video/graphics cards referred to as GPU's quite frequently.
This is the component responsible for accelerating various rendering applications and also functions as one of the main processing units for 3D and 2D applications such as video games (like Deformers). Within this category, there are "discrete" video cards that are often expansion components in the computer, and there are integrated graphics cards which come built-in with motherboards.
This is a common abbreviation for motherboard. A motherboard is the main circuit board within your computer and is responsible for determining what hardware you can use and also providing the expansion slot(s) for additional pieces of hardware to be added.
This is the term commonly used to refer to device drivers. These pieces of software are responsible for allowing the various pieces of software within your computer interact with the various pieces of hardware in your computer. An example of a driver are video card drivers, which are responsible for allowing a lot of the latency between the user and the hardware to be eliminated. This allows programmers to create complex applications (games!) that interact directly with the GPU without requiring a large number of steps for the end-user. They are also responsible for many issues if they are not kept up to date.