(1)The computer is an electronic machine that a game can be played in a computer.You may have computer errors on personal computer,supercomputer.Finding the word arranged in alphabetical order of Headwords,Compound words in separte entries are better.
(2)If oxforddict.com7th disk are the same,so does the8th edition.
(3)"oxford" have got the Advanced Learner's Dict.of Current English, costing little money than you expected.
2012-09-21 19:39:19 補充:
Hence buy O.A.L.D.of Current English.