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Why are OLED displays flexible whereas LED displays are not?

2019-02-27

Well, it depends on OLED display itself. After all, OLED display is flexible in nature, which is able to bend and fold freely.

Does a CCTV system work without a hard disk?

2019-02-26

Yeah. A CCTV system should be able to work without a hard disk. Because its data can be stored in the server or Cloud.

Are medical or airport X-ray machines more powerful?

2019-02-26

Comparing with airport X-ray machine, medical X-ray machine is obviously more powerful, which depends on their different practical requirements.

How is IoT related to electronics and communication systems?

2019-02-26

In fact, the IoT’s software platform is based on the hierarchical communication system, including data-aware system, middleware system, network operating system, IoT management system and information center management system, etc.

How many transistors have to fail in order to make a CPU unusable?

2019-02-25

Generally, as long as 2% transistors are failed in a CPU, the CPU will be unusable.

Why are some people against led street lights?

2019-02-25

The research online shows that colour temperature and brightness are the mainly reason why people against LED street lights. In other words, people have requirements for the street lights’ color and brightness.

Is Raspberry Pi a microprocessor or microcontroller?

2019-02-25

Exactly speaking, Raspberry Pi is not only a microcontroller but also a mini computer, which runs Linux system.

How does the heartbeat sensor work?

2019-02-21

A Heartbeat Sensor consists of an infrared LED and an infrared phototransistor.

How are you using the big ultrasonic cleaner equipment?

2019-02-21

Well, in fact, the big ultrasonic cleaner equipment is used to clean such stuffs: Hardware parts, circuit boards, machinery, automobile parts, etc.

If I input a lot of voltage into a transistor, will it break?

2019-02-21

Yep! It will certainly break the transistor. Don’t try to do that!

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