Computing Development

Early computing was expensive and large-scale, but World War II spurred investment and advancements in cryptography.
Post-war, companies like IBM and Hewlett Packard advanced computing in academic, business, and government sectors.
Punch cards were replaced by magnetic tape for data storage due to limitations.
Early computers used bulky, unreliable vacuum tubes; transistors later replaced them, enabling smaller, more efficient devices.
Admiral Grace Hopper invented the compiler, translating human language into machine code, making programming more accessible.
Hard disk drives and microprocessors led to smaller computers; the Xerox Alto featured a graphical user interface.
The Apple II made personal computers affordable for the middle class, bringing computing into homes and offices.
IBM's PC with MS-DOS, in partnership with Microsoft, increased consumer accessibility; Microsoft Windows became a dominant operating system.
Video games, starting with Atari's Pong, popularized computers as entertainment.
Richard Stallman's GNU project and Linus Torvalds' Linux offered open-source operating system alternatives.
PDAs (Personal Digital Assistants) and Nokia's mobile phones with PDA functionality led to smartphones.
IT support has evolved from hardware-focused tasks like replacing vacuum tubes to managing complex and prevalent technologies.