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enable data to be entered without human intervention
Scanner provide for the easy and convenient capture of data from paper sources and facilitate the editing of the same. On the downside, scanning is a very slow method of data capture especially where a lot of documents have to be dealt with, and scanners are costly to maintain.
disadvantages in data manual processing
There are both advantages and disadvantages of data collection methods in statistics. The main advantages are the metrics and correlation one can draw from statistics. The disadvantages stem from sampling errors.
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Its used for surveys, forms etc
advantages of object oriented data base
Advantages and Disadvantages of primary data are: Advantages 1. Data is basic 2. Unbiased information 3. Original data 4. Data from the primary market/ population 5. Data direct from the population. Disadvantages. 1. Large volume of data. 2. Huge volume of population. 3. Time consuming 4. Direct and personal intervention has to be there. 5. Raw data.
I don't know, why are you asking me for?
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distorted data