Released in 1983 as a replacement for the 800 and 1200XL, the 800XL is the
high-end version of the 600XL. The 600XL/800XL include most of the features
of the 1200XL minus the Function keys and the demo program. But both the
800XL and 600XL have the Atari BASIC language built-in. In addition, these
two systems offer the Parallel Bus Interface (PBI), providing fast parallel
access to the heart of the computer. The 800XL contains 64K RAM.
Normally boots with Atari BASIC (Rev. B, or late models with Rev. C) enabled;
Hold down [Option] on startup to boot without BASIC.
The 800XL monitor port lacks the separate chroma video signal (exception: next
Late models (uncommon) of the 800XL, sold in Europe, include a redesigned
motherboard (the XE design), incorporate the FREDDIE memory management chip,
and do provide chroma output on the monitor port. BASIC in these machines is
Revision C. This version of the 800XL is sometimes described as the "800XLF."
Further variations of the 800XL (very rare): some late 800XL machines shipped
with 128K RAM; some 800XL machines sold in France have a SCART monitor port in
place of the standard monitor port.
Production of the 800XL was discontinued in 1985.