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。
2
He repeatedly took an existing but half-formed idea—the mouse-driven computer, the digital music player, the smartphone, the tablet computer—and showed the rest of the industry how to do it properly.
Also, technological know-how has become a requirement for most jobs in an increasingly digital world, as the computer has become a common tool in most professions.