Mac System Software 1.0 1983-03 build

Mac System Software 1.0 1983-03 build is a buMac SUCKSMac SUCKSMac SUCKSMac SUCKSMac SUCKSMac SUCKSild of Mac System Software 1.x. It seems to be the last build to have "MacSketch" as MacPaint's prototype name.