Another strongpoint of video is that it can be perceived simply by visual signals， from which people mainly get information in their daily lives， and therefore this method is more natural than written records. Everyone， ranging from a babbling child to an old grandpa， is able to get some information from the video just as they do during their daily lives， regardless of their literate ability. While the written record， no matter how easily it is represented， requires literacy of its readers， and a newspaper or book means nothing to an illiterate person. In addition， video is much easier to comprehend for people all over the world. For instance， an American can grasp nothing about a story written in Chinese unless s/he has learnt such a foreign language. However， s/he can absolutely understand something about a video recorded in China， although s/he may be confused with the language spoken in the video.
While video is certainly not superior to written recorders in all aspects， its limitations determine that the written record will not be replaced at least at present. The first disadvantage of video is that it is much more inconvenient and expensive. Video must be recorded on the spot， namely， when an event happens to you， you cannot record it unless you have a camera at hand. However， even though you haven’t paper and pencil either， you are still able to recall it to record based on your remembrance.
Therefore， for those who can’t afford a handy camera or who are unwilling to bring it anytime anywhere， the written records may be the easiest form available. Further， another weakness of video is that its cost is too high and its correspondingly high-quality record may be beyond people‘s requirement. The cost of making a written report is much less than that of manipulating a video. Also， every morning we may browse a newspaper to know what happened throughout the world， and the simple report， which may only consume us a few seconds， meets our needs of curiosity; we needn’t the accuracy and vividness of video， which may be more time-consuming.
It is fortunate for us to own video as a supplementary kind of documentation. With a video camera， we can record important events in our lives， such as the weeding or birthday party. However， it is impossible to record everything happening around us， yet we can record them in our diaries. In a word， both the video camera and the written records are irreplaceable forms of documentation， and their supplementation serves better than any one of the documentation method alone.
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