1976, Warner Communications buys Atari from Nolan Bushnell for $28 million. In december 1978, Atari announces the Atari 400 and 800 personal computers, using the 6502 microprocessor.  In october 1979, Atari begins shipping the Atari 400 and Atari 800 personal computers. In december of the same year, Sears begins selling Atari home computers. These computers used cartridges for software media and also had a cassette program recorder to save the program you created using the basic computing language cartridge. In may 1981, Atari announces the 8KB Atari 400 is being discontinued.
1985 The new Atari Corp. delivered on its promise to advance the 8-bit Atari system by replacing the 800XL/600XL with the new 130XE and 65XE in 1985. The 65XE is nearly identical to the 800XL in features, minus the PBI. The 130XE, however, offers 128K RAM, plus the FREDDY chip, supporting the unique (but rarely used) ability for the 6502C and the ANTIC to independently access RAM banks.  In 
addition, the 130XE replaces the PBI port with the Enhanced Cartridge 
Interface (ECI), continuing the powerful feature of direct memory access. 
  •  SN=A16B1149861
  • 128 K RAM
  • 256 colors 
  • 11 graphic modes
  • 4 sound voices spanning 3 1/2 octaves
  • Built in ATARI BASIC
The back of the ATARI 130XE

Atari cassette model;  XC12, sn;S1774000209

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