About shi Ya Ong

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So far shi Ya Ong has created 4 blog entries.

What is DVR?

What is a DVR? A Digital Video Recorder (DVR) connects to an analog CCTV system

What is DVR?2022-01-05T21:24:55+00:00

What is NVR?

What is a NVR? A network video recorder (NVR) is a specialized computer system that

What is NVR?2022-01-05T21:24:42+00:00

What is IP Camera?

What is an IP Camera? An IP camera, or Internet Protocol camera, is a type

What is IP Camera?2022-01-05T10:12:02+00:00

What is CCTV?

You are a small business owner. At late night, you received a call from the

What is CCTV?2022-01-05T09:39:19+00:00
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