Sharp_X1
Sharp X1
Series of home computers
The X1 (エックスワン, Ekkusuwan), sometimes called the Sharp X1[1] or CZ-800C[2], is a series of home computers released by Sharp Corporation from 1982 to 1988.[1] It is based on a Zilog Z80 CPU.[2][3][4][5][6][7][8][9]
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The RGB display monitor for the X1 had a television tuner, and a computer screen could be superimposed on TV.[1] All the TV functions could be controlled from a computer program. The character font was completely programmable (PCG) with 4-bit color, and was effectively used in many games. The entirety of the VRAM memory was mapped on to the I/O area, so it was controlled without bank switching. These features made the X1 very powerful for game software.