In information technology, the process of backing up digital data consists of making multiple copies of the digital data so that the data can be restored whenever there is a need.

在信息技术中，备份数字数据的过程包括生成数字数据的多个拷贝，以便能够在需要时恢复数据。

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By detailing data needed for digital city construction, the author emphasizes the importance of data collecting when building a city into digital one.

本文首先指出了数据在数字城市建设中的重要作用，描述了数字城市建设中需要的数据。

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Digital data recording equipment, digital data storage equipment, and digital data using equipment for producing problem report.

数字数据记录设备，数字数据存储设备，以及产生问题报告的数字数据使用设备。

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But as you probably know, a JPEG, a photograph, these are usually multiple megabytes these days which means there's a ridiculous amount of data still on that digital camera.

但是你知道，一个JPEG图片，通常是由几兆字节组成的,也就是说这些数据的大部分,仍然存在于数码相机中。

哈佛公开课 - 计算机科学课程节选

With the amount of digital data in data centers growing annually and storage budgets highly constrained open source storage system designs can fill an important niche for data centers and IT people comfortable with installing and maintaining their own hardware.

FORBES: Open Source Storage Changes Industry Cost Structure

Numerous digital data sources are becoming available because of a combination of increasing data storage, data processing and data transmission productivity (effective available bandwidth appears to double approximately every 21 months).

FORBES: Three Ways To Make Big Data Make Money

But these -- if everybody's data, medical data is in digital form with important privacy protections, we can reduce medical errors, we can make sure that doctors and nurses, pharmacists are all communicating more effectively.

WHITEHOUSE: Town Hall in Los Angeles