For instance:
Word Processing, printing.
Or Word Processing, printing, internet use.
(How much use and demand of the internet or even word processor/office programs/applications?)
Compared to Games, Graphics, Video Editing, etc.
I don’t know much about light and heavy usage and demands on computers.
if you want a lightweight word processor, try downloading Abiword. its light weight & free. Use firefox for web browsing & thunderbird for email. they are excellent programs.
A few typical examples.
Heavy demand applications include animation rendering with Applications such as Autodesk Maya or 3Dmax, Large CAD drawings produced in the likes of AutoCad, processing large numbers of professional sized photographs in batch mode with PhotoShop and formatting large documents for printing. Multitrack audio editing and recording (24 tracks or more) is also a high demand application as is real time non linear editing of full transport DVD files.
Many new games are also high demand, both on the graphics system and also on the CPU.
Light usage applications include applications such MS Word when being used for small documents, and small spreadsheets, Most Internet use is also light use in reaity.
Light: Word processing, Printing, Internet use.
Medium: Word processing, using the internet, playing music all at the same time.
Heavy: Intensely demanding Games (Crysis, COD4, etc) Virus scans, Video processing & Editing, Codec Processing, File compression. (WinRAR)