Types of Computer
Types of Computer We can categorize computers in three ways: on the basis of data handling capabilities, size, and purpose. On the basis of data handling capabilities , the computer is of three types: Analogue Computer Digital Computer Hybrid Computer Analogue Computer Process analog data. Analog data is continuous data that changes continuously in physi…
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Information Technology (IT)
Information Technology (IT) includes the study and application of computers and any form of telecommunications that store, retrieve and send information. It a combination of hardware and software used together to perform the essential functions people need and use every day. In IT All the equipment or elements which are used for communication in real world.…
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View of Data
The view level provides the “ view of data ” to the users and hides the irrelevant details such as data relationship, database schema, constraints, security, etc. from the user and helps in easy and efficient user-database interaction. Benefits of a Database View There are many benefits to using views. Which are:- Enforce Business Rules – Use views to d…
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MySQL structure and syntax
MySQL structure and syntax MySQL is a relational database system, stores bits of information in separate areas and links those areas together. Store virtually anything in a database example:- address book, product catalog. MySQL Structure MySQL allows separating information into tables or “areas of pertinent information.” In non-relational database systems,…
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PHP download file script
PHP download file script Download those particular files on which the user has clicked. (It means download the files dynamically not a static file) PHP download file features: The file name, which is passed via the query string, is sanitized by using the PHP function preg_replace() and filter_var() To make the script safer, use the PHP function pathinfo() t…
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