The IBM 5550 is a series of microcomputers, which was marketed in the 1980s and 1990s in East Asia. It was marketed with the fact that they combined the three roles PC, typewriter and terminal in a computer.
The IBM PC, which was on the market since 1981, could not cope with East Asian languages , as the Intel 8088 processor, which was used in the IBM PC was not powerful enough and the screen resolution is too low for the Chinese characters had.
Subsequently, the IBM 5550 was published that uses the powerful Intel 8086 processor and a high resolution screen with 1024 × 768 pixels (some variants also only 720 × 512). First, the IBM 5550 used its own architecture, and later the Micro Channel Architecture of the staff System/2-Rechners was taken. The computer was first marketed in 1983 in Japan, later followed by versions for Korea, China and Taiwan. The operating system is MS -DOS and OS / 2 were used.