Data storage device

From Wikipedia, the free encyclopedia(Redirected from Data storage)Jump to: navigation, searchA data storage device is a device for recording (storing) information (data). Recording can be done using virtually any form of energy. A storage device may hold information, process information, or both. A device that only holds information is a recording medium. Devices that process information (data storage equipment) may either access a separate portable (removable) recording medium or a permanent component to store and retrieve information.Electronic data storage is the storage procedure which requires electrical power to store and retrieve data. Most storage devices that do not require visual optics to read data fall into this category. Electronic data may be stored in either an analog or digital signal format. This type of data is considered to be electronically encoded data, whether or not it is electronically stored. Most electronic data storage media is considered permanent (non-volatile) storage, that is, the data will remain stored when power is removed from the device. In contrast, electronically stored information is considered volatile memory.With the exception of barcodes and OCR data, electronic data storage is easier to revise and may be more cost effective than alternative methods due to smaller physical space requirements and the ease of replacing (rewriting) data on the same medium. However, the durability of methods such as printed data is still superior to that of most electronic storage media. The durability limitations may be overcome with the ease of duplicating (backing-up) electronic data.Many different consumer electronic devices can store data.Edison cylinder phonograph ca. 1899. The Phonograph cylinder is a storage medium. The phonograph may or may not be considered a storage device. Posted by My Luv at 21:45 0 comments Labels: Thing's School From Wikipedia, the free encyclopediaJump to: navigation, searchSchools PortalUniversity PortalEducation PortalThis article is about institutions for learning. For the concept of "schooling", see Education. For other uses of the word "school", see School (disambiguation) or Educational institution.A school is an institution where students (or "pupils") learn while under the supervision of teachers. In most systems of formal education, students progress through a series of schools: primary school, secondary school, and possibly a university or vocational school. A school may also be dedicated to one particular field, such as a school of economics or a school of dance. In home schooling and online schools, teaching and learning take place outside of a traditional school building.Contents[hide]1 Regional varieties2 School sizes and structures3 School ownership and operation4 History and development of schools5 School security6 School health services7 Online schools/classes8 Schools in popular culture9 Stress10 Discipline11 References12 Bibliography13 See also//