Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Z] failure, expectation of 2nd 3rd 4th 5th failures, backup measures forfeatures identifying keyfeedback bad experience examples showing different levels of user responsiveness 2nd 3rd good experience immediate feedback 2nd 3rdfile formats .BMP files .GIF files .JPG/.JPEG files .PNG files overview filtered text box 2nd 3rd 4th 5th fixed-purpose devices flash memory storage 2nd floating-point mathematics 2nd focused activities focused purposeform connectionless for long periods of time, need to be crowded and noisy spaces, ability to be used in overview single-handed operation T9 2nd 3rd two-handed operationforms painting to a form 2nd 3rd 4th 5th 6thframeworks overviewfuture issues constant part of our daily lives, mobile devices as 2nd innovations personal computers specific purpose small and mid-sized applications, mobile devices containing surroundings, mobile devices' awareness offuture mobile devices memory management |