website/content/museum/sharp-x1-turbo.md

title, categories, types, origins, years, cpus, params

title	categories	types	origins	years	cpus	params
Sharp X1 Turbo	Computers	Home Computer	Japan	1984	Sharp Z80 A	name company company_name specs tabs photos hardware links videos related software oc_id source X1 Turbo /companies/sharp Sharp label value NAME X1 Turbo label value MANUFACTURER Sharp label value TYPE Home Computer label value ORIGIN Japan label value YEAR 1984 label value KEYBOARD separated full-stroke keyboard with numeric keypad label value CPU Sharp Z80 A label value SPEED 4 MHz label value RAM 64 KB label value VRAM 96 KB label value ROM 128 KB + 40 KB label value TEXT MODES 20 / 40 / 80 x 10 / 12 / 20 / 25 label value GRAPHIC MODES 320 x 200 / 640 x 200 / 320 x 400 / 640 x 400 label value COLORS 8 label value SOUND 3 voices PSG label value SIZE / WEIGHT Main unit: 390(W) x 390(D) x 108(H) mm / 11 Kg\ Keyboard: 390(W) x 185(D) x 35(H) / 1.3 Kg label value I/O PORTS 2 x I/O ports, 2 x joysticks (Atari), audio out, keyboard, printer label value BUILT IN MEDIA 2 x 5.25'' FDD label value OS S-OS label value POWER SUPPLY Built-in PSU label value PRICE Model 10: 168 000 yen (Japan, 1984)\ Model 20: 248 000 yen (Japan, 1984)\ Model 30: 278 000 yen (Japan, 1984) photos hardware software links videos title subtitle text image SHARP X1 TURBO null title subtitle text image MAIN UNIT - FRONT null title subtitle text image KEYBOARD null title subtitle text image REAR CONNECTORS null title subtitle text image TOP VIEW This original extension was at least usable with the X1 Turbo serie... null title subtitle text image I/O EXPANSION BOX This box was used to multiply the input/output connectors and thus, possibilities of the X1 systems. null title subtitle text image FRONT null title subtitle text image BACK This extension box offers 4 I/O ports. null title subtitle text image FRONT This extension was used to generate titles for video-tapes, among other things... null title subtitle text image BACK A lot of connectors can be found at the back of the unit... null title subtitle text image FRONT null title url text Class X1 http://www2s.biglobe.ne.jp/~ITTO/x1/x1menu.html In Japanese title url text Japanese Computer Emulation Center http://www.jcec.co.uk/x1games.htm Lot of games for X1 title url text Sharp X1 japanese commercial https://www.youtube.com/watch?v=7QxhgniF8Pg Length: 15 s /museum/sharp-x1-c-cz-801c /museum/sharp-x1-ck-cz-804c /museum/sharp-x1-cs-cz-803c /museum/sharp-x1-cz-800c /museum/sharp-x1-d-cz-802c /museum/sharp-x1-turbo-iii /museum/sharp-x1-turbo-z-cz-880c /museum/sharp-x1-turbo-z-iii /software/brain-breaker /software/dragon-buster /software/euphory /software/gate-of-labyrinth /software/gradius /software/maidum /software/studio-cut /software/the-4th-unit /software/the-goonies /software/the-tower-of-druaga /software/timeparadox /software/tokyo-nampa-street /software/wing-man-2 /software/zeta-5 259 url date https://web.archive.org/web/20221204122640/http://www.old-computers.com/museum/computer.asp?c=259 2022-12-04

The Turbo serie was launched simultaneously with the X1 serie.

The X1 Turbo has enhanced graphic features. It also has additional hardware compared to the X1 serie: DMAC, CTC and SIO as standard. CTC & SIO can be however implemented on X1 serie through additional FM sound board or Mouse/Rs-232C board. But DMAC can not.

Turbo series has a special "KANJI" V-RAM, compared to X1 series which has only one way to display "KANJI" symbols, a heavy task for the Z80A: to display 1 "KANJI" character, 96 bytes of data are transfered to the V-RAM. As opposed, Turbo series just send 3 bytes of data (2 bytes for shift JIS code, and another 1 byte for attribute) to the "KANJI" V-RAM. Among the 8-bit systems, only the X1 Turbo serie and MZ-2500 have this special V-RAM. The access time is almost null, compared to the X1's V-RAM which is slower.

In the same way, it takes from 2 to 8 seconds to define P.C.G (user generated characters, similar to sprites) with the X1 serie, while it takes only 0.5 seconds with the Turbo serie. The MZ-2500 is also equiped with this feature.

There were in fact three models:
- Model 10: built-in tape recorder, no KANJI ROM, only 48 KB V-RAM (additional 48 KB available as an option),
- Model 20: one 5.25" disk drive instead of the tape recorder,
- Model 30: two 5.25" disk drives

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.