[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"news-7-21":3},{"month":4,"day":5,"dateStr":6,"events":7,"generatedAt":19},7,21,"7月21日",[8],{"year":9,"month":10,"day":10,"title":11,"description":12,"category":13,"tags":14,"importance":17,"source":18},1975,0,"施乐公司退出大型计算机业务市场。","施乐公司（Xerox）宣布将不再经营大型主机计算机业务。此举发生在施乐于1969年收购科学数据系统公司（SDS）六年后，由于该部门长期亏损且无法撼动IBM等在大型机市场的地位，施乐最终选择全面撤出这一领域。","事件",[15,16],"计算机历史","Xerox",5,"历史数据","2026-08-04T06:57:00.506Z"]