"InfoWorld" favorably reviewed the 800's performance, graphics, and ROM cartridges, but disliked the documentation and cautioned that the unusual right Shift key location might make the computer "unsuitable for serious word processing". Noting that the amount of software and hardware available for the computer "is no match for that of the Apple II or the TRS-80", the magazine concluded that the 800 "is an impressive machine that has not yet reached its full computing potential". Despite planning an extensive advertising campaign for 1980, Atari found competing with microcomputers from market leaders Commodore, Apple, and Tandy difficult. By mid-1981 it had reportedly lost $10 million on sales of $10–13 million from more than 50,000 computers. In 1982, Atari started the "Sweet 8" (or "Liz NY") and "Sweet 16" projects to create an upgraded set of machines that were easier to build and less costly to produce. Atari ordered a custom 6502, initially labelled 6502C, but eventually known as SALLY to differentiate it from a standard 6502C. SALLY was incorporated into late-production 400/800 machines, all XL/XE models, and the Atari 5200 and 7800 consoles. SALLY adds logic to disable the clock signal, called codice_1. This lets ANTIC shut off the CPU to access the data/address bus, allowing them to coexist. Like the earlier machines, the Sweet 8/16 was intended to be released in two versions: the 1000 with 16 KB, and the 1000X with 64 KB. To support expansion, similar to the card slots used in the Apple II, the 1000 series also supported the Parallel Bus Interface (PBI), a single expansion slot on the back of the machine. An external chassis could be plugged into the PBI, supporting card slots for further expansion. For reasons that are not clear in historical sources, the original Liz plans were dropped and only one machine using the new design was released. Announced at a New York City press conference on December 13, 1982, the rechristened 1200XL was presented at the Winter CES on January 6–9, 1983 and shipped in March 1983. Notable features were 64 KB of RAM, built-in self test, redesigned keyboard (featuring four function keys and a HELP key), and redesigned cable port layout. The 1200XL omitted several features, or they were poorly implemented. The PBI expansion connector from the original 1000X design was left off, making the design rely entirely on the SIO port again.