A computer operation has been set up by the Israeli military to help monitor the activities of Palestinians living in the occupied West Bank, a recently published study said. The independent West Bank Data Base Project, in its annual report, said the computer is recording political attitudes as well as business and personal data on the West Bank's 813,000 Arabs. "By pressing a key . . . any civil administration official will gain access to lists of 'positives and hostiles' and decide on the fate of their applications, from car licensing to water quotas," the report said.