March 17, 1990

LEAD: With some of the biggest companies in the United States leading the way, Hungary has become corporate America's main port of entry into Eastern Europe. In recent months, General Electric, General Motors, Levi Strauss, McDonald's and others have set up businesses in Hungary, and the stream of American concerns seeking joint ventures here is accelerating daily.

LEAD: A Southern California winter sun warmed the courtyard of the chic Bistro Garden restaurant in Beverly Hills the other day while the woman who wants to be the next Governor met with the rich and the powerful. It was far in climate and spirit from the chill fog and Victorian elegance of Dianne Feinstein's San

LEAD: Unleashing a radical attack on inflation, Brazil's new President sent Congress a package today that declares a moratorium on the internal debt, privatizes state companies, ends subsidies, imposes new taxes, loosens foreign exchange controls, declares a new currency and opens the country to imports.

LEAD: President F. W. de Klerk announced today that talks between the Government and an African National Congress delegation led by Nelson Mandela would open in Cape Town on April 11.

LEAD: The American physician who is widely credited with organizing the United Nations' worldwide fight against AIDS resigned today in what he said was a dispute with his boss, the head of the World Health Organization.