A picture is worth a thousand words. Well, actually, if it’s a VGA picture with 24bit color depth, then it’s 640x480x24bits = 7,372,800 bits = 921,600 bytes. If each byte is one character, assuming an average word length of 8 (with a space after each word), we get about 115,200 words. So our ancestors were off by two orders of magnitude. Maybe they were assuming 200×150 images? Whatever
Quote from here