The X68000 Ace and Ace HD were the successor of the X68000 and had the same characteristics. They had a new motherboard and a new version of the operating system (1.01).
Notice that the earlier models of the X68000 series didn't use SCSI hard disk interface, but a Sharp interface derived from the SASI protocol (Shugart Associates Systems Interface) launched by Shugart associates in 1980.
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NAME
X68000 ACE / ACE HD
MANUFACTURER
Sharp
TYPE
Professional Computer
ORIGIN
Japan
YEAR
1988
KEYBOARD
Full-stroke keyboard
CPU
Motorola MC68000
SPEED
10 MHz
CO-PROCESSOR
Unknown
RAM
1 MB (up to 12 MB)
VRAM
512 KB (graphic) + 512 KB (Text)
ROM
1 MB
TEXT MODES
Unknown
GRAPHIC MODES
256 x 240 / 256 x 256 / 512 x 240 / 512 x 256 / 512 x 512 / 640 x 480 / 768 x 512 / 1024 x 1024 / 128 sprites (16 x 16 dots)
COLORS
65535 (8 colors in 1024 x 1024 to 65K in 512 x 512)
SOUND
FM Sound (Yamaha 2151 : 2 channels / 8 octaves stereo) + PCM (OKI MSM6258V : 4 bit mono)
I/O PORTS
Joystick (2), Audio IN / OUT, Stereo scope, TV Control, NTSC Video Image I/O, Expansion (2 slots), External FDD, SASI, RS232
