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  • ...calculator was the TI-81, released in 1990. The TI-81 was also TI's first Z80-based graphing calculator. It provided full scientific calculator functiona ...riginally was based around five main integrated circuit (IC) chips: A CMOS Z80 CPU, a 32 KB SRAM chip, a 512 KB flash chip, an LCD driver with embedded VR
    10 KB (1,648 words) - 02:24, 4 June 2015

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