The next time you check the weather on your smart watch, remember when personal computers were once the size of suitcases. When this Aug. 25, 1977 photo was taken, Jeff Leff, 9, of Toronto, Canada, was visiting the Boston Computer show with his parents and took the opportunity to try some math problems via the TV set and computer meant for home use by Apple Computer, Inc. Try tucking that into a backpack. (AP Photo/CM)