HD是什么意思？

计算机： = Half-Duplex,半双工; = Harmonic Detector, 谐波检波器; = HeaD, 磁头; = Head Driver, 磁头驱动器; = HeaDing, 标题; = Heavy Duty, 重载的，高功率的; = Height-to-Distance ratio, 高度距离比; = Hierarchical Direct, 分级管理; = High Definition, 高清晰度；