I don’t know whether you have ever used a DOS system? If so, then you must be impressed by its black screen, although not beautiful, yet there is one advantage, that’s you can only do what you should do in this black screen.
LibreOffice is a derived version of OpenOffice Office suite, is freeware and open source as well (compared with the expensive MS Office, this is absolutely its biggest advantage), but in comparison wih OpenOffice, it has increased a lot of notable features (just because of LibreOffice, the OpenOffice.org official support has stopped).
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.
Hugin is a cross-platform and open-source panoramic photography image mosaic application, Pablo d’Angelo-based development, it is a front-end program with graphical interface based on Helmut Dersch’s Panorama Tools, Andrew Mihal’s Enblend and Enfuse.
If wanta capture the screen picture, you can get it by using the “Print Screen” key easily, or use the capture software similar to SnagIt to capture. But if you want to record down the computer operation screens in Windows, how to do that? Or you want to get some computer operation steps recorded into a instructional film or a Flash file, so use which kind of software will be more convenient?