计算机系统可以分为哪两个组成部分?

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select * from tbl_Articles WHERE ArticleID=1905830 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1905830 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1905830 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3461442,526646,1795061,1007718,3033100,561396,980039,1189165,1118365,904782,3052473,1150054,615173,805638,2163669,760678,3487960,3158714,1014286,3503407,1108475,2200831,3395711,1542276,3416359,2016161,2178410,1027138,3175253,798570) ORDER BY field (ArticleID,3461442,526646,1795061,1007718,3033100,561396,980039,1189165,1118365,904782,3052473,1150054,615173,805638,2163669,760678,3487960,3158714,1014286,3503407,1108475,2200831,3395711,1542276,3416359,2016161,2178410,1027138,3175253,798570)