X11. If a WORD is defined as 16 bits, how many WORDS is a 64-bit data item? 12.12 x. 13. If a given computer has a total of 8 megabytes of memory, how many bytes (in decimal) is this 14. A given mass storage device such as a Hardisk can store 2 gigabytes of information. Assuming that each page of text has 25 rows and each row has 80 columns of ASCII characters (each character = 1 byte) approximately how many pages of information can this disk store? 15. What is the function of the BIU and EU inside a microprocessor system. Explain with proper picture diagram