Computing essentials 2007

 O\'Leary, Timothy J.,; O'Leary, Linda I.;

Boston : : McGraw-Hill/Irwin , 2007

Peter Norton's Computing Fundamentals

 Norton, Peter,;

New York : : Glencoe/McGraw-Hill, , 2001

PCs all-in-one desk reference for dummies

 Chambers, Mark L.;

Hoboken, NJ : : Wiley , 2006