[The Real Slim Shady]

Does any one have a /really/ simple resource for learning about logic gates and bitwise operators and shtuff like that? Im having a hell of a time grasping these concepts and its killing me lol

This is school work, and some example questions would be like

1. Complete the Truth Table for a three input NOR gate.

2. Construct a NOR gate using only NAND gates with 2 inputs.

3. Using NAND gates with 2 inputs only, construct a three input NOR gate.

Perform a logical operation on these hex values...

4. 0x17E3 AND 0xA62B =

5. 0xD36D OR 0x2A30 =

6, 0x3011 XOR 0x5EC0 =

Note that im not actually asking for the answers to these questions, these are just examples and are of no concern to me... but right now i have no idea what im supposed to be doing with the above and the lecturer and lectures did not clear this up for me, and the stuff ive found on google is going right over my head... so if any one has any ideas? id appreciate it. i have some ideas for the first 3 but the last 3... not a fucking clue haha

Thanks.