Erasing (computer science)
In computer science, deletion stands for different methods of removing / eliminating data .
variants
The deletion of data can be possible. a. differentiate between which objects are deleted and how they are deleted. Examples:
- In word processing and text editing in general, any parts of the text (individual characters, words, lines, sections, formatting, graphic objects ...) can be removed; see Remove (key) and Backspace
- From data stocks and databases , data records can be deleted ('delete') using the data actions provided in computer programs - in addition to creating (create), reading (read) and changing (update). See also update (database) .
- Removing files or directories , see Delete (file) .
- Erasing 'Solid-State-Disks' (SSD), see Solid-State-Drive # Secure Erase
- Deleting a file system : Also called formatting in Windows . Most of the time, a file system is not actually deleted, but just created again. See also file system and list of file systems , etc. a. the section File system # specifics .
- at Windows meanwhile
diskpart clean alletc., - with unixoid systems u. a.
dd
- at Windows meanwhile
- Magnetically stored analog signals can be destroyed with an erase head and thus made illegible.
See also
- Data loss , unintended loss of data
- Hard disk drive data protection
- Data destruction for security reasons in order to make a reconstruction of deleted data impossible