Beti George yn holi Trefor Davies, entrepreneur cyfrifiadurol o Lincoln. Beti George chats to Trefor Davies, a computer and silicon chip expert from Lincoln. Show more
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Beti George yn holi Trefor Davies, entrepreneur cyfrifiadurol o Lincoln. Beti George chats to Trefor Davies, a computer and silicon chip expert from Lincoln. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
