Editing Atari ST (section)

=== ST<sup>E</sup> ===
As originally released in the 520ST<sup>E</sup>/1040ST<sup>E</sup>:

* All of the features of the 520STFM/1040STFM
* Extended palette of 4,096 available colors to choose from
* [[Blitter]] chip (stylized as BLiTTER) to copy/fill/clear large data blocks with a max write rate of 4&nbsp;Mbytes/s
* Hardware support for horizontal and vertical fine scrolling and split screen (using the Shifter video chip){{Citation needed|date=September 2021}}
* DMA [[sound chip]] with 2-channels stereo 8-bit [[pulse-code modulation|PCM]] sound at 6.25/12.5/25/50&nbsp;kHz and stereo RCA audio-out jacks (using enhancements to the Shifter video chip to support audio shifting)
* National LMC 1992 audio controller chip, allowing adjustable left/right/master volume and bass and treble EQ via a [[Serial Peripheral Interface Bus#Microwire|Microwire]] interface
* Memory: 30-pin [[SIMM]] memory slots ([[SIPP memory|SIPP]] packages in earliest versions) allowing upgrades up to 4&nbsp;MB Allowable memory sizes including only 0.5, 1.0, 2.0, 2.5 and 4.0&nbsp;MB due to configuration restraints (however, 2.5&nbsp;MB is not officially supported and has compatibility problems). Later third-party upgrade kits allow a maximum of 14&nbsp;MB w/Magnum-ST, bypassing the stock [[Memory management unit|MMU]] with a replacement unit and the additional chips on a separate board fitting over it.
* Ability to synchronize the video timings with an external device so that a video [[Genlock]] device can be used without having to make any modifications to computer's hardware
* Analogue joypad ports (2), with support for devices such as paddles and light pens in addition to joysticks/joypads. The [[Atari Jaguar]] joypads and Power Pad joypads (gray version of Jaguar joypads marketed for the ST<sup>E</sup> and [[Atari Falcon|Falcon]]) can be used without an adapter. Two standard Atari-style digital joysticks could be plugged into each analogue port with an adapter.
* [[Atari TOS|TOS]] 1.06 (also known as TOS 1.6) or TOS 1.62 (which fixed some major backwards-compatibility bugs in TOS 1.6) in two socketed 128&nbsp;KB ROM chips.
* Socketed [[Plastic leaded chip carrier|PLCC]] [[Motorola 68000|68000]] [[Central processing unit|CPU]]