Ahead of its new product launch this year, Microsoft Corp. on Thursday unveiled it's first new logo in 25 years. The world's largest software company redesigned its logo since 1987. Replacing its italic style logo it has introduced a dash of color in the new logo using a multi-colored square next to a plain rendering of its name. The symbol is made up of four squares that are blue, red, green and yellow. Together, the four squares resemble a window frame, a symbol that has been used in various iterations to brand the Windows OS.