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We know that computers can be used for work, study, entertainment, etc. In addition to the necessary computer hardware, software is also needed. Usually, we call a computer with only hardware but no software "bare metal", which cannot do any meaningful work. At present, software can be divided into two categories according to its use: system software and application software. System software is a program designed for computer systems to efficiently use and manage computer software and hardware resources and support the operation of application software. Such as operating systems, programming languages and language processing programs, network system software, system service programs, etc. Among them, Windows operating system is what we often use. Application software is a variety of programs that are user-oriented and written to solve practical problems. It can be written by users themselves or purchased. For example, office XP, Photoshop, Red Alert and so on, which we often use.两人过去坐下，紫茄手臂撑在桌上，托着小下巴，看看哥哥，又看看淼淼师姐，觉得十分开心，再也没有刚出事那会子的惊恐和绝望。他说着，一把抓过身旁的妮哈，颇为粗暴地按在怀中，吓得妮哈一声惊叫。　　而朱雨辰则表示，在戏外也经常和张静初交流微博心得，他虽然很喜欢玩微博，但也不会将特别私人的事情放到微博里。张大栓和张槐则抢上前，挨个扶起裴县令和方靖宇等乡绅。在美国六年的廖家大女婿宁律平马上就要回来了，这使廖家的人都陷入了恐慌！这不仅是因为宁律平和大女儿廖曼芳的婚姻状况让人堪忧，更重要的是他们的儿子-宁娃还是一个患有自闭症的孩子，而这个情况妻子曼芳一直都瞒着丈夫宁律平。纸是包不住火的。就在宁律平进门后不久，宁娃有病的事还必须果然败露了。原本就打算回国和曼芳分手的宁律平，此时也更加坚定了离婚的决心！他在情人南茜的怂恿之下，去做了亲子鉴定，一个秘密就此浮出了水面——宁娃与宁律平没有任何血缘关系！这个消息使曼芳的父母廖新成和沈秋菊也大为骇然！宁娃不是宁律平的孩子，那他又是曼芳和谁生的孩子！正当廖家二老苦苦的追寻答案的时候，一件令他们更加意杨不到的事情又发生了！二女儿曼华实在忍不住，向他们主动担白了实情！原来，宁娃不仅不是宁律平的孩子，更不是曼芳的孩子！宁娃的亲生母亲竟然是廖曼华！曼华告诉年迈的父母，宁娃是自己与丈夫陈立结婚前，和一个叫沈凡的男人生下的。当初，她怀着宁娃的时候，她不知道因为什么原因，沈凡竟然无情的抛弃了自己，为了这个早产的婴儿不会影响