The invention provides a head for a putter. A cut-away or indented portion extending in the lengthwise direction of the shock absorbing material is formed, for example, in each of the upper and lower ribs at outer side, distal ends thereof or each of edges of top and bottom faces of the base section. Lines and do not contain agitating or dispersing aids in the area of the opening. The second computing device receives game software components over the network that are compatible with the first computing device but not compatible with the second computing device and transfers the received components to the first computing device over the interface.