This is a 1981 ad for a Radio Shack TRS-80 Computer Models I, II and III and VisiCalc! The size of the ad is approximately 8.5x11inches. The caption for this ad is 'Radio Shack's new VisiCalc program is the planning tool for Scientists, Engineers and Managers' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collecction today!