Computer systems and those professionals that keep, troubleshoot, program, administer, community, and construct them are central to most each trade. The TX-zero (Transistor eXperimental – 0”) is the first common-objective programmable laptop constructed with transistors. For simple replacement, designers positioned every transistor circuit inside a “bottle,” much like a vacuum tube. Constructed at MIT´s Lincoln Laboratory, the TX-zero moved to the MIT Research Laboratory of Electronics, the place it hosted some early imaginative exams of programming, including writing a Western movie proven on television, 3-D tic-tac-toe, and a maze in which a mouse found martinis and became increasingly inebriated.