2020年05月15日
Integrated circuit board foundation
The integrated circuit board is a carrier for mounting integrated circuits. But it is often said that the integrated circuit board also brings the integrated circuit. The integrated circuit board is mainly composed of silica gel, so it is generally green.
The integrated circuit board uses a semiconductor manufacturing process to manufacture many transistors, resistors, capacitors and other components on a small single-crystal silicon wafer, and combines the components into a complete according to the method of multilayer wiring or tunnel wiring electronic circuit. It is represented by the letter "IC" in the circuit (there is also a text symbol "N", etc.).
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According to the functional structure, the integrated circuit board can be divided into two categories: analog integrated circuit board and digital according to its function and structure.
Analog is used to generate, amplify and process various analog signals (referring to signals whose amplitude changes with time. For example, audio signals of semiconductor radios, tape signals of recorders, etc.), and digital is used to generate, amplify and process various digital signals. (Refers to signals that have discrete values ??in time and amplitude. For example, audio and video signals for VCD and DVD playback).
According to the manufacturing process, it can be divided into semiconductor and thin film. Membrane is classified into thick film and thin film. According to the integration level, the integration level can be divided into small scale, medium scale, large scale and super large scale.
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2020年05月11日
What to pay attention to when using the water dispenser
Keep in mind the precautions when using the water dispenser. What should you pay attention to when using the water dispenser?
When using the water dispenser for the first time, don't be too busy to turn on the power. First open the water inlet below, and see that the water flows out before you can plug in the power supply, so that the heating tube inside will not dry and damage.
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The water dispenser should be placed on a stable place against the wall to avoid collisions. Do not let the sun shine on it. Especially in summer, when the sunlight is strong, long-term exposure will cause its material to change and become easily damaged.
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When placing the water dispenser, it is best to keep it slightly away from the wall, and ensure that the environment it is in is ventilated and ventilated, away from stoves, computer hosts and other heat dissipation items, so that it is easy to dissipate heat and moisture.
Do not leave the water in the water dispenser for a long time. The inner liner will have a layer of scale after a period of time. It is recommended to open and clean it once a month. About six months, special personnel are invited to carry out detection and disinfection treatment to ensure the safety and hygiene of the water quality.
If there is no one at home, it is recommended to turn off the power of the water dispenser at will, which can save electricity and prevent the loss of the machine when there is no water in the water dispenser. If you forget it, it is best to buy the automatic power off function Water dispenser.
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2020年05月05日
企業應如何保障數據安全
企業應如何保障數據安全
前段時間，一家服務提供商被“刪庫跑路”的消息刷爆了整個IT圈。雖然數據已經完全恢複，平台又恢複運行，但整整七天的數據恢複時間對於300萬商戶造成的業務損失是不可估量的。這一事件暴露了公司巨大的數據安全漏洞，這是大多數公司普遍存在的問題。
數據作為企業的生命線，實際上完全不是一個錯誤。對於一個公司的數據丟失，是一個致命的打擊。像這樣的“刪除庫”事件中，除了資金和營業損失，商譽的損害無法計算出它是一個致命的打擊。因此，任何操作的技術人員需要小心和較重，警鍾長鳴保持數據安全的時間！
但絕大多數中小民營企業的自建數據庫和一些雲廠商的雲數據庫管理服務人員往往可以忽略了數據進行安全的重要性，自身信息安全防護工作機制不夠嚴謹，容易發展面臨各種不同網絡攻擊和企業公司內部高危操作的風險，尤其是對惡意刪庫這種致命性打擊行為問題沒有防護、追溯和恢複的能力。
管理顧問服務是亞太區內領先的託管式安全服務供應商之一。
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