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 image company company_name specs tabs photos hardware links videos related software oc_id source X1 Turbo /media/museum/photos/sharp_x1-turbo_1.jpg /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 /media/museum/photos/sharp_x1-turbo_front.jpg title subtitle text image MAIN UNIT - FRONT /media/museum/photos/sharp_x1_turbo_front_1.jpg title subtitle text image KEYBOARD /media/museum/photos/sharp_x1_turbo_keyboard.jpg title subtitle text image REAR CONNECTORS /media/museum/photos/sharp_x1-turbo_rear.jpg title subtitle text image TOP VIEW This original extension was at least usable with the X1 Turbo serie... /media/museum/hardware/sharp_x1_turbo_businesscardreader.jpg 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. /media/museum/hardware/sharp_x1_cz81ebs_1.jpg title subtitle text image FRONT /media/museum/hardware/sharp_x1_io-box_2.jpg title subtitle text image BACK This extension box offers 4 I/O ports. /media/museum/hardware/sharp_x1_io-box_3.jpg title subtitle text image FRONT This extension was used to generate titles for video-tapes, among other things... /media/museum/hardware/sharp_x1_telopper-front.jpg title subtitle text image BACK A lot of connectors can be found at the back of the unit... /media/museum/hardware/sharp_x1_telopper-back.jpg title subtitle text image FRONT /media/museum/hardware/sharp_x1_tape-recorder-cz8rl1.jpg 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.