databases - organised set of data , explain - tell somebody about smth in an easy way, data collection - gather the raw data, data coding - arrange and systemise the data, data validation - clean and double-check , data entry - enter the data into a system, data tabulation - arrange the data into table format so that it can be analysed, data sorting - create categories to organise the data into relevant groups, protect - make sure that smb/smth not harmed/damaged, loss - no longer having smth, encrypt - put information into a special code, security - the activities involved in protecting smth, volume - amount of space that a container has, storage - the process of keeping smth in a particular until it is needed , feature - smth important, interesting thing, cloud computing - a way of using computers in which data are managed on a network of servers, external drives - located on the outside , backup - a copy of file, that can be used if the original is lost or damaged, worksheet  - a single page of a spreadsheet, revenue - profit, income, query - question,

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