By 1974, LEXIS was running on an IBM 370/155 computer in Ohio supported by a set of IBM 3330 disk storage units which could store up to about 4 billion characters. Its communications processor could handle 62 terminals simultaneously with transmission speed at 120 characters per second per user. On this platform, LEXIS was able to execute over 90% of searches within less than five seconds. Over 100 text terminals had been deployed to various legal offices (i.e., law firms and government agencies) and there were already over 4,000 trained LEXIS users.