The A4000 came in a white desktop box with a separate keyboard. Later there was also a tower version called the A4000T. Amiga 4000T The A4000T, also known as the Commodore Amiga 4000T, was a tower version of the A4000 computer. ...
Interestingly, unlike most other Amigas, early A4000 machines had the CPU mounted in a daughterboard using a special CPU slot. The mainboard had no CPU at all. Later machines had the CPU surface mounted on the mainboard in an effort to reduce costs. These machines were known as the A4000-CR (Cost Reduced) and the surface mounted CPU was a Motorola 68EC030. They also made use of a Lithium Ion backup battery rather than a NiCd. This backup battery is also one of the most common causes of problems in the aging A4000s: it has a tendency to eventually leak. The released fluids are somewhat corrosive and can eventually damage the motherboard. Full-height, 2 half-height, and 3. ... A floppy disk is a data storage device that is composed of a disk of thin, flexible (floppy) magnetic storage medium encased in a square or rectangular plastic shell. ... Advanced Graphics Architecture (AGA) was the name used for the improved graphics chipset of the third generation Amiga computers at the beginning of the 1990s. ... ATA cables: 40 wire ribbon cable top, 80 wire ribbon cable bottom Advanced Technology Attachment (ATA) is a standard interface for connecting storage devices such as hard disks and CD-ROM drives inside personal computers. ... Surface-mount components on a keydrives circuit board Surface mount technology (SMT) is a method for constructing electronic circuits in which the components are mounted directly onto the surface of printed circuit boards (PCBs). ... The 68EC030 is a microprocessor from Motorola. ... Lithium ion batteries (sometimes abbreviated Li-Ion) are a type of rechargeable battery commonly used in consumer electronics. ...
One compromise of the A4000 was the use of PC-compatible memory. This resulted in memory access approximately 50% slower (given identical clock rates) as compared to the A3000.
Like the Amiga 3000, the 4000 has 2 MB of chip RAM (reserved for its coprocessors) and 4 MB of fast RAM (used directly by the 68040).
The Amiga4000 mainboard was planned to use the AAA chip (the video custom chip designed to replace the AGA chip), the AAA chip was theoretically designed to use 8 MB FastRAM (see the "Chip RAM : ON=2MB, OFF=8MB" jumper on the motherboard), unfortunately, Commodore didn't use this chip, so this jumper is absolutely useless.
The Amiga4000 was mainly used for video production but was in direct competition with the PC compatibles when most of its major products (ImageIn, Real 3D, & Lightwave, to name a few) were adapted for Windows.
Amiga is the name of a range of home/personal computers using the Motorola 68000 processor family, whose development started in 1982.
The first Amiga computer, Amiga 1000 (or A1000 for short) was released in 1985 by Commodore, who marketed it both as their intended successor to the Commodore 64 and as their competitor against the Atari ST range.
The original Amiga chipset, OCS, was more advanced than other architectures of its time: it had dedicated chips for graphic effects based on the monitor's beam position and the use of genlocks was very easy; even today many broadcast corporations still use A3000s and A4000s for their real time video effects.
Feeds |
Contact