The original Macintosh introduced by Steve Jobs in 1984 had 128 KB of RAM.
Apple presented the Macintosh on January 24, 1984, during the company’s annual shareholders meeting. The compact computer combined a graphical user interface, a mouse, and a built-in screen in a design intended to make personal computing more approachable. Its 128 KB of memory was enough for the original system software and applications, but it sharply limited multitasking and software expansion.
The machine was originally known simply as the Macintosh, but later became known as the Macintosh 128K after Apple released the Macintosh 512K. The 512K model kept the basic design while quadrupling the memory, addressing one of the earliest Macintosh’s principal limitations.
The Macintosh is also associated with Apple’s famous “1984” television commercial, which aired two days before the computer’s public introduction. That advertisement was directed by Ridley Scott, a fact sometimes confused with the machine’s own launch presentation.