What is the "stack"? Where and for what can it be used for? What are it's special attributes?

What is the "Carry bit"? How and where is it used?

What does the word $",$random" in RAM mean exactly?

What is the difference between the Neumann and Harvard processor architectures? Where are they used generally?

What is the purpose of "pipeline" in processors and how does it work?

Transform the decimal number $202$ into binary and hexadecimal form, then produce the two's complement from the binary form $($in $8$ bit number format$)!$

What is "direct memory addressing" $($DMA$)?$ What is it's purpose, how does it work and where can it be found?

What are the differences between SRAM and DRAM?

What is "cache" $($in PC$\text{'}$s$)?$ How does it work and what is it good for?

Describe "floating point" number format and give an example! What are it's advantagesdisadvantages compared to the fixed point format?

If a processor's instruction set and hardware doesn't contain a multiply instruction, can we still do multiplication with it$?$ What does it have to know and what is the principle of this?

Describe NRZ coding using drawing of waveform.

What is the Manchaster$-$code's advantage and disadvantage compared to NRZ$?$ Draw the elemental waveforms!

Describe the RS$232$ in short! $($What kind of connection, how many and what kind of devices can it connect, what connection technique does it use, what sort of adressing, is there any sort of error connection, normally for what distances and what area of use$).$

Describe I$2$C bus in short! $($What kind of connection, how many and what kind of devices can it connect, what connection technique does it use, what sort of adressing, is there any sort of error connection, normally for what distances and what area of use$).$