Question: please i need unique answer use your own words dont...

Please, i need Unique answer, Use Your own Words (don't copy and paste)..
*Please, don't use handwriting..

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Computer Organization

* Help me, Answer all Questions, and I need more details and more Explain

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Q1: If we want that our users may not access our database server directly from client computer, which client server architecture is best? Explain your answer logically.

Q2: Provide an example of system and its components and draw its diagram. Your example should not be from book.

Q3: What is the range of 4-digit decimal number? Also write the biggest 4-digit decimal number which is also the last 4-digit number?

Q4: Convert Decimal Number (65630)₁₀ to equivalent Hexadecimal Number, Octal and Binary Number.   

Thank you..