MICROSOFT founder Bill Gates, formerly the richest bachelor in America, is clearly no dummy. And he likes his privacy. In planning his wedding at the weekend (he married Microsoft marketing manager and marathon runner Melinda French in Hawaii on Saturday), Mr Gates took care of intricate details usually reserved for large-scale military exercises. Having already made it clear journalists were about as welcome at the ceremony as karaoke at the Hong Kong Club, Mr Gates went that ''extra mile'' to make sure there was no chance of any unwanted intrusion from the Fourth Estate. We had hoped to provide pictures of the wedding for you in Technology Post, and were happily camped next to the wire service picture machine when The Times of London reported that Mr Gates had hired every helicopter within range of the idyllic Hawaiian island. This obviously kept the helicopters out of the hands of the press, and, therefore, spared Mr Gates and his bride the ignominy of having to yell their ''I dos'' over hurricane-like winds generated by helicopters overhead. (Last time actress Elizabeth Taylor got married - outdoors at her friend Michael Jackson's place - she must have thought she was in a wind tunnel, such was the enthusiasm of the working press.) Mr Gates and his bride had worked hard at keeping the wedding a secret, even circulating (apparently) a false date of St Valentine's Day to throw the press off (a tactic, we fear, learned in software trenches). The island of Lanai is apparently known as a playground of the super-rich, and was once the world's largest pineapple plantation. The ceremony took place at the 17th tee of the island's new Challenger golf course, designed by Jack Nicklaus. What significance the 17th tee has - beyond having a decent view over the Pacific - is not yet clear. As would be expected, lots of millionaires were present - many of them Microsoft employees whose personal fortunes have sky-rocketed along with the company's. One guest we would not have pegged as an FOB (Friend of Bill) is bizarre rock star Alice Cooper. He was expected to perform, along with country singer Willie Nelson, before guests left for a reception on the yacht of Microsoft co-founder Paul Allen. CYBERSPACE entered the dictionary last year, with more written about the so-called data super-highway and the Internet than anyone could have predicted. A Net address on your business card is now apparently the hottest hi-tech ticket in business in the United States, according to the New York Times view of ''What's Hot''. Your Internet address should appear just below your personal fax machine number and your cellular telephone number. You should also subscribe to an electronic newspaper, the survey said. Just how big is the Internet? According to a neat ''Internet Index'' sent in by Digital Equipment communications manager Bonnie Engel, as of July 1993, Internet hosts worldwide numbered 1,776,000.