The Apple Mac could blow out forty candles on Wednesday. The consumer computer has its origins in the Macintosh, and the all-in-one was introduced on January 24, 1984. Since then, the range has expanded to include desktop computers without integrated displays and laptops.

The Macintosh was later given the 128K suffix and was the first relatively inexpensive consumer computer to have a graphical interface. The introduction of the PC was accompanied by the legendary advertisement below, inspired by the 1984 book.

The PC has a 9-inch monochrome display with a resolution of 512 x 342 pixels, a Motorola MC68000 processor with a clock speed of 8 MHz, 128 KB of memory, and a 3.5-inch floppy disk drive. Apple later expanded that memory to 512 KB, because 128 KB turned out to be too little for many programs. The 128K went on sale in October 1984.

The all-in-one iMac we know today debuted in 1998, more than 25 years ago. Over the years, the iMac has become flatter and has a larger screen. Additionally, Apple has switched from PowerPC CPUs to Intel CPUs, now making its own SoCs based on the Arm architecture.

At the end of October, Apple announced its latest iMac, the 24-inch version with the M3 chipset. There was previously a larger 27-inch model, but it missed the move to Apple Socs. Furthermore, the Mac lineup now consists of the Mac Mini, Mac Studio, Mac Pro, and three desktop computers without displays. Apple has also been selling MacBook laptops for years, and there’s currently the Air and Pro.

While Macs still represent billions in sales, they are far from Apple’s main source of revenue. In fact, services like TV+, Music, and Arcade generated $22.3 billion in revenue for Apple last quarter, compared to $7.6 billion from Macs. However, iPhones generate much more: $43.8 billion.