A search engine is a set of programs which enables users to search documents and files ihe world wide web.
Common search engines are Google, Yahoo, Bing,...
A computer has two types of memory.
1. Non-volatile and
2. Volatile.
Volatile memory is computer memory that requires power to maintain the stored information.
* It is a temporary memeory which cannot contain information permanently.
Example :: RAM or Random Access Memory
Non-volatile memory is computer memory that can retain the stored information even when not powered.
* It is a permanent memory in which data is stored in permanently.
Examples :: Hard disc, ROM, Floppy discs, Magnetic tape,...
The operating system manages all the CPU, disc drives, establish a user interface, execute and provide services for applications software, printers, etc...
Concatenation of text means adding a word with other word. It can be done using Ampersand (&).
For example :
'Amper' & 'sand' = Ampersand
A computer programming language is nothing but a language which is understand by the computer.
Examples of programming languages are Basic, C, Java, Python, ...
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