Yes. All OpenOffice.Org programs are open source and free to use, even for businesses.
Microsoft Powerpoint or Openoffice Impress
Click on Tools, Options, OpenOffice Impress, Grid. Un-tick the 'snap to grid' option - and click OK
It's called 'Impress'
The Power-point equivalent in OpenOffice is Impress.
OpenOffice impress is used for openoffice presentations. There are many alternatives to OpenOffice like WPS (has a nice Graphical Interface). "WPS presentation" is used for presentations.
It's a 'slide-show' program - similar to Microsoft's Power-Point program.
The OpenOffice equivalent of Microsoft's power-point program is 'Impress'
Microsoft PowerPoint can be found when you purchase the Microsoft Office suite. A free alternative, OpenOffice Impress, is part of the OpenOffice suite.
Yes.
I recommend free office suite provides by OpenOffice. It is compatible with MS Office, as usable, but for free. Practically all operating systems support OpenOffice.
Throw it away and buy the full program or download OpenOffice and use it - OpenOffice is free.
Impress is one part of the whole OpenOffice package. The whole OpenOffice suite needs about 650 Megabytes of hard-drive space to install it - but only needs approximately 440 Megabytes after installation. It will run on a computer that has as little as 256 MB RAM - but would work better with 512 MB.