Masahiko Hatori, who developed the BIOS and DOS for the JX, recalled the development staffs were anxious that it would be too late to compete with other Japanese machines although the management thought it went well whatever IBM made. They were using NEC and other companies' computers at their home. He also revealed the reason why the JX used the 8088 processor was both the development and sales teams thought a consumer-class JX mustn't surpass a business-class 5550. The JX was dedicated to be inexpensive for personal use, but it didn't suit consumers who preferred the fast response time for gaming.