VirtualBox (formerly called Sun VirtualBox, Sun xVM VirtualBox and Innotek VirtualBox, now its full name should be Oracle VM VirtualBox) is a powerful cross-platform, open-source and x86-based virtual machine (VM) software. It allows users to virtual other x86-based operating systems on 32-bit or 64-bit Windows, Solaris and Linux operating systems, that is to say, the user can install and run Solaris, Windows, DOS, Linux, OS/2 Warp, OpenBSD or FreeBSD system as the client operating system in VirtualBox.

JRuler (AKA: JR Screen Ruler) is a practical virtual screen ruler, used to accurately measure the length between any two horizontal or vertical points on your computer screen, can display in Pixels, Inches, Picas or Centimeters these four length units.

Speaking of the recognition tool for processor - CPU-Z, its popularity and necessary degree do not need verbosity. The famous hardware website TechPowerUp provides us with a similar tool GPU-Z, which is used to identify the graphics card now.

Perhaps you have already known that MyLastSearch allows to view the recent search records of web browser, and want to have a look at recently opened files list. Although the "My Recent Files" in the start menu can also display recently opened files, yet if you wanna see more detailed information (such as created time or modified time), it will be not convenient enough.

When writing blog, my attention is often attracted to the Internet, this greatly reduces my work efficiency and wastes a lot of time, it needs to be strengthened in very deed. After all, spending too much time on blogging may cause negative effect. And now, we need the help of Q10.