YOUTH'S COMPUTER SEIZED IN JERSEY WAS USED FOR MAGAZINE 'BULLETIN BOARD' ------------------------------------------------------------------------ By JOSEPH F. SULLIVAN, SPECIAL TO THE NEW YORK TIMES July 18, 1985 The editor and publisher of a magazine for computer enthusiasts said today that one of the seven home computers seized last week by New Jersey law-enforcement officials was used to maintain an electronic bulletin board operated by the magazine. He denied that it had any connection with the suspected illegal activities linked to seven young people who used the computers. The publisher of the monthly magazine 2600, Eric G. Corley of Middle Island, L.I., said the computer picked up at the home of a 17-year-old youth in Dover contained the bulletin board, named ''Private Sector,'' that is used by enthusiasts who call themselves hackers to exchange information about telecommunications advances and electronics. Mr. Corley said he had received telephone calls from computer users across the United States and in Britain asking about the disappearance of the bulletin board. The magazine has about 1,000 subscribers, he said. He said the electronic bulletin board was carefully screened each day and contained no illegally obtained information. ''The bulletin board is simply people talking to each other, and to say it was used to move satellites or make illegal telephone calls is simply a case of people's imaginations taking off,'' he said. Mr. Corley said the computer seizure was comparable to shutting down a newspaper because of something in its classified advertising. ''The country wouldn't stand for it and we believe the same kind of First Amendment issue is being raised here,'' he said. The Middlesex County Prosecutor, Alan A. Rockoff, said he was not aware of the computer's connection with the magazine. He said the computer was seized because his investigation had established a ''nexus'' between it and the suspected illegal activities. The 17-year-old who maintained the magazine's bulletin board in his computer said in a telephone interview today that he was not concerned about the charges of conspiracy to commit theft that Mr. Rockoff said would be filed against him and six other teen-aged computer users. ''I'm innocent and I know it,'' he said, ''so basically I'm not worried.'' The youth, who asked that his name not be used, said he began setting up the bulletin board last December and, through a mutual friend, agreed with Mr. Corley to have it become a service of the magazine. There was no charge for computer users to gain access to the bulletin board and read the information in it or leave messages or questions. The youth said he examined the board each day and erased any information that anyone might add, such as credit-card or telephone numbers, that might be construed as illegal. Mr. Rockoff said the seven youths, who were strangers to each other, were being charged with conspiring to commit theft because they exchanged information through their systems on how to circumvent telephone charges, make explosives from household chemicals, interfere with satellite communications and call the Pentagon and defense contractors over coded phone systems. He said a computer owned by a South Plainfield youth was seized in June because it was suspected of being used illegally. An examination of its communications with other computers led to the confiscation of the six other computers in northern New Jersey. Mr. Rockoff said the seven youths would be given summonses to appear in juvenile court.