This is a "Sakhr (Arabic: صـخـر) AX-150 MSX computer" made in Kuwait, it was used in Egypt and the Persian Gulf States. It's a copy of the Yamaha YIS-503 with bugs fixed in the firmware.
Sakhr Computersصخر, developed by Kuwaiti company, Al Alamiah produced an Arabic-language version of MSX computers in the 1980s. Their products included the MSX2, MSX2+ and the Yamaha AX100 models, the latter known as Sakhr MSX AX170. The company was also the first to convert the BASIC computer language to Arabic.