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Hardware

USB devices can not be planted

Our school's computers can not plug in USB devices.But there is one phenomenon:MP3 plug, but the charge can not be connected to computers and mp3 does not have any tips.U disk is the same, LIGHT of the U-set lighting, but Computer is not working.(WIN2000 system for the equipment manager for …

Mouse has been in a dormant state?

Do not know whether the quality of the mouse, the pointer does not move, did not like the moment may be moving, but not direct it! Wheel and all around the top button, indicator is fixed, the infra-red optical mouse has a dark, the mouse is not a long time …

Let's see if I choose to help me choose the speaker

Let's see if I choose to help me choose the speaker, said to be 20 white cone Germany, the technical parameters are as follows: main speakers: sensitivity:85D frequency:250HZ – 20KHZ Power to bear:30w – 50w impedance:8 ohms Size:High-124cm, length 16cm ________________________________________ surround speakers: sensitivity:85D frequency:250HZ – 20KHZ power to bear:30w …