The Z83 replaced an 8 year old windows 2000 desktop computer ( typically 100W with a noisy fan) and put its 27" HP Pavilion monitor and fullsize keyboard to good use. The Z83 draws typically only 6 Watt (from its 12V supply).  I installed MS Office, FireFox, GoogleChrome and more. Good for  wordprocessing, web browsing, photo viewing. light duty image preocessing and email.