Memory & PLD

The amount of $$ROM$$ needed to implement a $$4$$ bit multiplier is

A main memory unit with a capacity of $$4$$ megabytes is built using $$1M \times 1$$-bit $$DRAM$$ chips. Each $$DRAM$$ chip has $$1K$$ rows of cells with $$1K$$ cells in each row. The time taken for a single refresh oper...

A $$ROM$$ is used to store the table for multiplication of two $$8$$ bit unsigned integers. The size of $$ROM$$ required is

A $$ROM$$ is used to store a truth table for a binary multiplier unit that will multiply two $$4$$ bit numbers. The size of the $$ROM$$ (number of words $$ \times $$ number of bits) that is required to accommodate the tr...