What are vector graphics?

Vector graphics is the use of polygons to represent images in computer graphics. Vector graphics are based on vectors, which lead through locations called control points or nodes. Each of these points has a definite position on the x and y axes of the work plane and determines the direction of the path; further, each path may be assigned a stroke colour, shape, curve, thickness, and fill.

What is a vector image?
Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygons—all of which are based on mathematical expressions—to represent images in computer graphics. Vector graphics are based on vectors (also called paths), which lead through locations called control points or nodes.

What is a vector file format?
Vector files such as AI and EPS can remain editable so you can open them back up in Illustrator and edit any text or other elements within the graphic. With images that contain text that are saved as a JPG, PNG or GIF, you would not be able to reopen and edit the text.

What is a vector graphics software?
A vector graphics editor is a computer program that allows users to compose and edit vector graphics images interactively on a computer and save them in one of many popular vector graphics formats, such as EPS, PDF, WMF, SVG, or VML.

What is a vector and what are they made from?
The difference between vector and raster graphics is that raster graphics are composed of pixels, while vector graphics are composed of paths. A raster graphic, such as a gif or jpeg, is an array of pixels of various colours, which together form an image.

Also see: What are vector and raster maps?

What is a Virtual PC?

A virtual PC is effectively a software version of a physical PC which is able to run its own operating system and applications. Typically a virtual PC will boot up in its own window and is often used to run a different operating system to the one installed on the host pc on which it runs. You could therefore use it to try out a version of say, Linux, without having to install it on your main system.

Microsofts free Virtual PC software has been available to do this in versions of Windows up to and including Windows 7, but has been superseded in Windows 8 by the faster and more robust Hyper-V system which is incompatible with other virtualisation software.

What is VP9?

Developed by Google this video compression standard is available for use royalty-free and is a competing standard to the H.265 format. Both formats are designed to facilitate 4K and higher resolutions.

What is a VPN?

A virtual private network, or VPN, allows you to extend a private network across a public network – usually the Internet. To the end user, it will appear as though their device were connected directly to the private network in the remote location. A VPN is often used in business environments where remote workers require secure access to the corporate network. Because the local device appears to be connected to the remote network, VPN can also be used to circumvent local restrictions such as firewalls and the blocking of certain traffic. It can also result in the local device appearing to be situated geographically in the location of the remote network, overcoming geographical restrictions to some sites.