41.   Computer Associates makes software for integrating large corporate data processing operations.

42.   Computer Associates, which makes the software that many big companies use to manage their computer systems, has had a difficult year.

43.   Convergence makes communications software.

44.   Corsair Communications of Palo Alto, which makes software for the wireless communications market, was hurt by weaker international sales, particularly in Asia and Latin America.

45.   Currently, it makes software for its own large-scale computer systems.

46.   CrossWorlds, based in Burlingame, Calif., makes software that automates the tracking of supply, shipping and customer data in the computer networks of companies.

47.   E-Travel, of Concord, Mass., makes software that allows consumersto book business trips using a Web browser.

48.   First it just made software.

49.   For example, When.com, a company that made calendar software, was folded into AOL Products to develop the popular calendar America Online introduced late last year.

50.   For seven years, he worked for a Silicon Valley company that made software to help engineers measure vibration and noise in cars, planes and disk drives.