What is a tristate buffer? Describe it in terms of terminals and behaviour at those terminals. What is the difference between an n-bit latch and an n-bit word? In the memory word circuit developed in class, why can't a word be both read and written at the same time? What operations can be performed on memory? What is a bank of words? Why can only one word be accessed at a time? What is Kibi and why is it used? What is an ALU used for? Why might an ALU include a NOP operation? Why might an ALU include the RY operation? What is different about RY and NOTY (compared to all other ALU operations except NOP)? Inside a computer, why is all information represented using binary values? Why are there both a carry into and a carry out of a Full (1-bit) Adder? How many different binary values can be encoded using n bits? As concepts, what is the difference between Carry and Overflow? What encoding scheme is used to represent signed integers? When n-bit binary values are interpreted as signed integer values, what are the maximum and minimum values that can be represented