http://general-terms.thesaurus.ekt.gr/vocabhttp://general-terms.thesaurus.ekt.gr/vocab?tema=12313special computer methods http://general-terms.thesaurus.ekt.gr/vocab?tema=12313 character recognition NT http://general-terms.thesaurus.ekt.gr/vocab?tema=12313 computer sound synthesis NT http://general-terms.thesaurus.ekt.gr/vocab?tema=12313 computer graphics NT http://general-terms.thesaurus.ekt.gr/vocab?tema=12313 optical character recognition NT http://general-terms.thesaurus.ekt.gr/vocab?tema=12313 multimedia systems NT