The mark consists of The word DIGITAL in white lettering superimposed on the word TUFF in black lettering, the word DIGITAL being approximately one-third of the height of the word TUFF with these words superimposed on a grid consisting of primarily white lines separating the grid squares with some pink lines separating some grid squares and with the bottom portion of the grid containing grid squares colored in white, green, yellow, red, orange, brown, purple and blue, with the first quarter of the grid squares from the left primarily colored in green and blue, the second quarter of the grid squares from the left colored primarily in yellow and green, the third quarter of the grid squares from the left colored primarily in brown, orange and yellow and the fourth quarter of the grid squares from the left colored primarily in brown, purple, red and orange and with the upper portion of the grid being primarily white with scattered squares of the upper portion of the grid colored primarily in green and orange.