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What is WAN ?



A wide area network (WAN) is a telecommunications network or computer network that extends over a large geographical distance. Wide area networks are often established with leased telecommunication circuits.

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30 Mathematical symbols

Mathematical symbols: 1. Multiplication ( x ) - рдЧुрдгा 2. Subtraction ( - ) - рдШрдЯाрдиा 3. Addition ( + ) - рдЬोреЬрдиा 4. Equals ( = ) - рдмрд░ाрдмрд░  5. Division ( ÷ ) - рднाрдЧ 6. Is greater than (  > ) - рд╕े рдЕрдзिрдХ 7. Is less than ( < ) - рд╕े рдХрдо 8. Is not equal to ( ≠ ) - рдХे рдмрд░ाрдмрд░ рдирд╣ीं  9. Is similar to ( ~ ) - рдХे рдЬैрд╕ा 10. Is congruent to ( ≅ ) -  рдХे  рд╕рдорд░ूрдк  11. Infinity (∞) - рдЕрдирди्рддрддा 12. Implies ( ⇒ ) - рд╕ंрдХेрдд рджрд░्рд╢ाрдиा  рдХрд░рдиा 13. Theta ( ╬╕ )  a plane angle 14. Empty set ( ├Ш ) - the unique set having no elements 15. Triangle ( ╬Ф ) - рдд्рд░िрдХोрдг 16. Integral ( ∫ ) - рдЕрд╡िрднाрдЬ्рдп 17. The intersection of two sets ( ∩ )  18. Union of two sets ( ∪ )  19. Factorial ( ! ) - рднाрдЬ्рдп-рд╕ंрдмंрдзी 20. Percent ( % ) - рдк्рд░рддिрд╢рдд рджрд░्рд╢ाрдиा 21. Right angle ( ∟) - рд╕рдордХोрдг 22. Angle ( ∠ ) - рдХोрдг 23. Sum of ( ∑ ) - рдХा рдЬोреЬ 24. Braces (grouping) ( { } ) 25. Brackets ( [ ] ) - рдм्рд░ैрдХेрдЯ рд▓рдЧाрдиा 2...
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How to enter the BIOS or CMOS setup?

Because of the wide variety of computer and BIOS manufacturers over the evolution of computers, there are numerous ways to enter the BIOS or CMOS Setup. Below is a listing of most of these methods, as well as other recommendations for entering the BIOS setup. ⚠ Note: Apple, or Mac, computers do not have a BIOS and instead utilize an EFI, which does not need to modified based on the hardware in the computer, like a BIOS. The EFI provides better integration between hardware and software for Apple computers, virtually eliminating the need for a BIOS. ⚠ Note: This document does not help if you cannot enter the CMOS setup with password. New computers Computers manufactured in the last few years allow you to enter the BIOS setup using one of the five keys shown below during the boot process. ⇾  F1 ⇾  F2 * ⇾  F10 ** ⇾  DEL ⇾  ESC * If pressing F2 opens a diagnostics tool, your setup key is likely F10 ** F10 is also used for the boot menu. If F10 ...
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What is Motherboard ?

Motherboard is a printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into.
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