Windows起源可以追溯到Xerox公司进行的工作。1970年，美国Xerox公司成立了著名的研究机构Palo Alto Research Center(PARC)，从事局域网、激光打印机、图形用户接口和面向对象技术的研究，并于1981年宣布推出世界上第一个商用的GUI（图形用户接口）系统：Star 8010工作站。但如后来许多公司一样，由于种种原因，技术上的先进性并没有给它带来它所期望的商业上的成功。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001149s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.076394s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001031s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001292s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000982s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003290s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000832s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003529s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015627s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001557s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 396545 [ RunTime:0.013710s ]
