The History Source on Instagram: "Did you know they were already developing technology like touch screens and 3d graphics in the 1960s? As shown in this 1967 news footage, a device called the light pen could accurately draw on screens, allowing users to see their designs rendered as 3D graphics. This tech was in its infancy, primarily developed within research institutions and military projects. But as computing power grew, so did the complexity of the 3D graphics, laying the foundation for more