Intel 1486 has A31 - A2 address pins as well as --BE3, -BE2, -BE1, and --BE0 byte enable pins. It has 32 data lines: D31 - DO. Assume that we want to connect i486 to a memory system M that is built with a number of LY62W20488 memory chips, each with 2M x 8-bit wide data. Answer the following three questions. 1. How many bytes of memory should the memory system M have (The capacity of the memory system)?2. How many hardware-page selection bits does this memory system M have? In other words, how many upper address lines of i486 should be used for choosing each hardware page of memory chips?3. How many memory chips is needed to construct this memory system M?

3. (6 pts) internally in the computer, with few exceptions, all numerical computation is done using binary numbers. output, however, often uses ascii, which is formed by appending 011 to the left of a bcd code. thus, an algorithm that directly converts a binary integer to a bcd integer is very useful. here is one such algorithm 1) draw lines to the left of the binary number to bound the expected bcd decades. (each decade is a group of 4 bits.) move the binary number one bit to the left. add 0011 to each bcd decade containing a binary value> 0100 repeat steps 2-3 until the last bit in the binary number has been moved into the least significant decade position. (note that when the last bit has been shifted into bcd decade, step 3 is not repeated.) read the bcd result. 2) 3) 4) 5) a) execute the algorithm for the binary number 1101101 b) execute the algorithm for the binary number 01110101110 4. (4 pts) represent the decimal number 3568 in bcd; excess-3 code; ascil; and hex.

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