<p>The Sharp X1 turbo Z II refined the multimedia turbo Z design in December 1987. It reduced the price while adding 64KB of expansion memory as standard and bundled New Z-BASIC, giving programmers direct access to the machine’s advanced audiovisual hardware.</p><p>The Z II retained the 4,096-colour analogue graphics, FM synthesis, disk storage and high-resolution modes that made the original turbo Z the peak of Sharp’s 8-bit computer technology.</p>
<h6>Notable Features</h6><ul><li>Included 64KB expansion RAM as standard.</li><li>New Z-BASIC exposed the turbo Z audiovisual functions to BASIC programmers.</li><li>Retained 4,096-colour analogue graphics and Yamaha FM sound.</li></ul><h6>Historical Significance</h6><ul><li>Made the turbo Z specification more affordable one year after the original model.</li><li>Appeared alongside the X1 twin as Sharp maintained both the standard and high-end branches of the family.</li></ul><h6>Collector's Notes</h6><ul><li>Original New Z-BASIC disks and manuals are valuable parts of a complete set.</li><li>Analogue RGB display compatibility and working floppy drives remain essential for practical use.</li></ul>
| Technical Information | |
|---|---|
| Name | Sharp X1 turbo Z II |
| Manufacturer | Sharp |
| Launched | Tuesday, December 1, 1987 |
| Launch Price | ¥179,800 |
| Country | Japan |
| CPU | Sharp Z80A at 4 MHz |
| Units Sold | |
| Model Number | CZ-881C |
| Controllers | Z80 CTC, DMA and SIO |
| Software | New Z-BASIC and X1 turbo software |
| Text Support | Japanese kanji ROM and high-resolution text |
| Video Features | Hardware scrolling, capture and mosaic processing |
| Storage | Two built-in 5.25-inch floppy disk drives |
| Sound | Yamaha YM2151 FM synthesis plus PSG |
| Display | 320×200 with up to 4,096 colours; 640×400 in 8 colours |
| RAM | 64KB main RAM plus 64KB expansion RAM |
| CPU Speed | 4 MHz |
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