The term Big Data refers to a dataset which is too large or too complex for ordinary computing devices to process. As such, it is relative to the available computing power on the market. If you look at recent history of data, then in 1999 we had a total of 1.5 exabytes of data and 1 gigabyte was considered big data.
The rm command removes the entries for a specified file, group of files, or certain select files from a list within a directory.
in LibreOffice Calc default number of sheets are only one.
google is not a browser it is a Search Engine and Google Chrome is a Browser, Yahoo is also search engine and Email Service Provide, and Gmail is Google mail service Provide but Opera is a Browser Software.