Subject ID:
Age :
Sex :
1. How long have you worked with computers for personal or job related use?
-- less than a year
-- less than two years
-- less then five years
-- more than five years
2. Which windowing systems have you used ? (Check all that apply)
-- OpenWindows
-- twm, vtwm, fvtwm
-- Macintosh
-- Microsoft Windows
-- OS/2
3. How long have you been using X windows ?
-- less than a year
-- less than two years
-- less then five years
-- more than five years
4. On the average how much time do you spend using a windowing system weekly?
-- less 5 hours
-- 5 to 10 hours
-- 10 to 20 hours
-- over 20 hours