31.   Both companies were born in an era when the mainframe computer was king.

32.   All feed information into central mainframe computers, some into citywide networked jackpots.

33.   But both IBM and EMC recognize that demand for data-storage products for the big systems is shrinking along with the market for mainframe computers.

34.   But Chase has a surplus of programmers for big mainframe computers, which have been phased out at the bank, and these extra programmers are being retrained.

35.   But it was the mainframe computer, or HOST, that failed Wednesday evening.

36.   But IBM, which was once the leading seller of storage for its mainframe computers, has fallen behind rivals in recent years.

37.   But Thursday came as a key test of its mainframe computers, she said, and it passed without incident.

38.   Computer Associates and Legent both specialize in software for mainframe computers.

39.   Computer Associates bought rival Legent last year to bolster its software that runs mainframe computers.

40.   Client-server systems split the workload between mainframe computers and individual workstations.