Sequent Computer Systems Inc investor relations manager John Eldridge says Wall Street estimates for the company’s 1993 earnings per share run from $0.95 to $1.10 and that the company is comfortable with that range: Sequent expects to continue to win orders from the traditional mainframe market and says it expanded its sales force to to 160 from 125 at the end of 1991 although total employment fell to 1,550 from a peak of 1,800; it sold more $500,000-plus machines in fourth quarter 1992 than the three previous quarters combined and looks forward to being able to use Pentium in its machines, because it says the new Intel Corp chip will reduce the gap between its machines and RISC in batch processing work.