Sanyo's IBM rival was on show in two versions. The MBC 550 costs £805 without a monitor, and the MBC 555 is £1,035 for a complete system.

Both are due to be available by the middle of next month. The 555 has 128K of RAM which can be doubled, dual 160K drives, eight colours and a dot resolution of 640 by 200. Based on the 8088, it runs MSDOS and is supplied with a bundle of Micropro software.

Its junior version, the 550, has a single disk drive but the same amount of user memory. To add a monitor from Sanyo will cost you £146 for a monochrome and £575 for a colour model. The 550 also has less software.