... 1. a-modem, b-share, c-data, d-full duplex, e-radio, f-large, g-coaxial, h-documents, i-light, k-connect, l-time, m-ring, n-central computer system, o-retrieval, p-protocols, q-channel, r- half-duplex. ... 1. a-Information, b-direct, c-database, d-write, e-calculation, f-prepared or closed databases, g-collect, h- sequential, i-record, j-updating, k- online, l-people, m-privacy. Câu 63: 1. a-microwave, ... 127 6) direct access files Câu 60: 1) a- maintenance, b-field, c-array, d-sequential, e-manipulation, f-online, g-retrieval, h-file, i-record, j-direct access. 2) The data is current. 3) Personnel:...