Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


Ready prompt T-shirts!

see details
ZX Spectrum T-shirts!

see details
ZX81 T-shirts!

see details
Spiral program T-shirts!

see details
Arcade cherry T-shirts!

see details
Atari joystick T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
Atari ST bombs T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Moon Lander T-shirts!

see details
C64 maze generator T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Pixel adventure T-shirts!

see details
Breakout T-shirts!

see details
Vector ship T-shirts!

see details

S > SHARP  > X1 Turbo   

X1 Turbo

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.
Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).



NAME  X1 Turbo
TYPE  Home Computer
YEAR  1984
KEYBOARD  separated full-stroke keyboard with numeric keypad
CPU  Sharp Z80 A
RAM  64 KB
ROM  128 KB + 40 KB
TEXT MODES  20 / 40 / 80 x 10 / 12 / 20 / 25
GRAPHIC MODES  320 x 200 / 640 x 200 / 320 x 400 / 640 x 400
SOUND  3 voices PSG
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
I/O PORTS  2 x I/O ports, 2 x joysticks (Atari), audio out, keyboard, printer
BUILT IN MEDIA  2 x 5.25'' FDD
PRICE  Model 10: 168 000 yen (Japan, 1984)
Model 20: 248 000 yen (Japan, 1984)
Model 30: 278 000 yen (Japan, 1984)

Software for this system!

year unknown company unknown
year unknown Dempa, Namco
year unknown Dempa, Namco

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

see more Sharp  X1 Turbo Ebay auctions !

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -