They create an effect similar to a computer-linked synthesizer which can convert a sequence of colors into a musical composition.
它们创造一作用，类似一台连接了合成器的计算机，合成器能转换一系列颜色为音乐合成物。
2
The system might use a smart identity card, or a digital credential linked to a specific computer and would authenticate users at a range of online services.
该系统可能使用智能身份证或连接到特定计算机的数字证书，并在一系列在线服务中认证用户。
3
The video cameras are linked to a powerful computer.