1. A computer game for tagging stored digital images, comprising: a randomizer for selecting: m images of the stored digital images, to be used in a game round, m being an integer larger than zero; and x letters of the alphabet, to be used in the game round, x being an integer larger than zero; an image display for simultaneously displaying n images out of m images, n being an integer larger than zero, wherein said image display comprises a screen having n image display areas defined thereupon and wherein n=m and each of the n images is displayed on one of the display areas; a letter tray for displaying a plurality of letter tiles, each letter tile representing one of the x letters; a highlighter for selectively highlighting one of the letter tiles according to a user pointer; a word tray enabling a user to construct words by selecting letter tiles from the letter tray; a tag generator generating tags linking words constructed in the word tray to corresponding images of the n images; and a timer counting a time period T 1 , wherein after each period T 1 each of the n images is displayed on a different one of the display areas.
7. The computer game of claim 1 , further comprising a timer counting a time period T 3 , wherein each time period T 3 designates a game round, and wherein the tag generator generates the tags only at the end of each time period T 3 .