The video sur veillance system have evolved from using analog sur veillance cameras and recording devices, which recorded videos on tape through VCR’s (videocassette recorders), to fully digital network-based video sur veillance system. These systems use high quality, high definition network cameras to record and store videos on servers, clouds, or DVRs (digital video recorders). DVRs have made it possible to record videos digitally. Powered with an Ethernet port, it further became possible to transmit digital videos over long distances. Some early DVR systems provided networking and monitoring at the same time, while others simply enabled monitoring of the network transmitted videos.

Wafer backgrinding is an integrated process in the fabrication of semiconductor devices. Prior to the process of backgrinding, wafers are laminated by different type of backgrinding tapes to avoid surface damage in the process of backgrinding and also protect from the wafer surface contamination caused by infiltration of grinding fluid. Minimization of various semiconductor components requires the use of wafer backgrinding significantly. Therefore, with technological advancement and usage of more compact & portable devices, backgrinding has become crucial stage of wafer designing & integration. Thus, importance of wafer backgrinding in the fabrication of semiconductor requires wafer backgrinding tape for protecting wafer’s surface, which in turn fuels the market growth.

Hearing loss or hearing impairment is one of the growing health concerns worldwide. It is one of the most common health conditions affecting millions of people around the world. In this type of medical condition, the individual loses his/her ability to hear completely or partially. This medical condition can affect either one ear or both the ears, leading to difficulty in hearing loud sounds or conversational speech. Hearing loss can have far-reaching implications to both the affected person as well as their closer ones.

目前行业的产业趋势是 4G 延续叠加 5G 变革：4G 产品消费体验的延续性升级，5G 技术推动硬件升级，同时贸易战大背景下自主可控带来趋势性投资机会。下游需求方面我们认为核心的重点在于华为和苹果两大品牌的创新引领。

随着华为发布 5G 手机后，三星/vivo/小米发布了 5G 手机，当前阶段，我们认为消费电子核心关注点仍在于 5G 智能终端的机会，建议关注光学和物联网两个重要产业方向。另一方面，华为事件后半导体吹响了国产替代号角，在政策、资金、下游需求多重因素共振的作用下，国产半导体迎来发展机遇，建议关注中国大陆优质半导体企业的成长机会。 

2016 年之后，以深南电路、沪电股份、生益电子为代表的通信板龙头业绩持续爆发，利润释放节奏与 4G 基站建设高峰期（14-16）错位的原因是什么？同时，今年 5G 基站建设已经拉开序幕，通信板公司未来业绩的持续性又将如何？本文将一一解答。

传统“蓝筹股”的定义是指：在某一行业中处于重要支配地位，业绩优良、交投活跃、红利优厚的大公司的股票。

全球 AI 市场规模预期在 2025 年超 6 万亿美元，目前全球 AI市场规模已超 1 万亿美元，中国市场超 1 千亿元。传统市场规模较大的领域将继续领跑，而新领域增长速度加快。

上周计算机板块（中信分类）下跌2.09%，涨幅排名位列29 个行业中第23 位，同期沪深300 下跌1.08%。计算机板块跑输大盘。

2018 下半年开始，“中台”概念的认知热度在显著提升。受阿里、腾讯、今日头条等研发型科技巨头将“中台”上升到战略高度等事件影响，行业重点公司纷纷跟进。我们首次围绕中台理念做深入分析，指出除技术框架革新外，中台建设更为企业管理、云平台等系统厂商带来950 亿的商业新机会。