A4000T

The A4000T, often referred to as the Amiga 4000 Tower, is a personal computer developed by Commodore International. It was released in October 1992 as a more powerful and expandable version of the Amiga 4000 desktop model. The "T" in A4000T signifies its tower form factor, which provided significantly more internal space for expansion cards and storage devices compared to its desktop counterpart.

Internally, the A4000T typically featured a Motorola 68040 or 68060 microprocessor, offering substantial processing power for its time. It included standard Amiga custom chips like the Agnus, Denise, and Paula, which handled graphics, sound, and I/O operations. Memory configurations varied, but it was designed to support large amounts of RAM.

A key advantage of the A4000T was its extensive expandability. It possessed several Zorro III expansion slots, allowing for the addition of various hardware accelerators, graphics cards, sound cards, and network interfaces. It also typically came with standard ISA slots, further broadening compatibility with third-party hardware. Storage options were also plentiful, with space for multiple hard drives and optical drives.

The A4000T ran AmigaOS, Commodore's proprietary operating system. It was popular among power users, developers, and in professional settings for tasks such as video production, graphics design, and music sequencing due to its robust hardware and flexible architecture. Production of the A4000T continued until Commodore's bankruptcy in 1994.