Ariana Cha's article on university computer science students (Page 1A, Aug 10) states that there is a shortage of computer science professors. On the contrary, it is very much an employers' market. Each year the computer science department at the University of California-Davis receives more than 400 applications for faculty openings. Cha also claims that while computer science enrollment has increased in certain areas of the country in recent years, nationwide enrollment continues to decline. Yet the Computer Research Association reports that national enrollment was up 40 percent last year. Most importantly, the article is incorrect in asserting that there is national shortage of computer programmers. Microsoft has stated that it only hires 2 percent of its applicants for software positions, hardly indicative of a shortage. While it is true that there are many unfilled positions in the industry, this is due not to a shortage of programmers but rather to employer's over-specification of job requirements. For instance though new graduates who know the Java programming language are in high demand, most employers would not even interview a mid-career programmer without Java experience, even though the language can be learned quickly. Industry officials have admitted a tendency to shun mid-career people in favor of hiring new graduates. Given this, what incentive is there for a young university student interested in long-term career prospects to major in engineering or computer science? -- Norman Matloff Professor of Computer Science UC Davis. (letter to editor, San Jose Mercury News, 17 August 1997)