$3\mathrm{.}1$ Answer the following questions.

a$.$ The main components of a microcomputer system are

b$.$ The acronym CPU means

c$.$ Which are the three system buses?

d$.$ What is a bus?

e$.$ What is a data bus transaction?

f$.$ What is a read operation? What is a write operation?

g$.$ How many data transactions are needed if the data consists of four bytes and the Data Bus width is $16$ bits?

h$.$ If the address bus has $N$ lines, what is the maximum number of addresses that the CPU may reach?

i$.$ What is the difference between physical address and data address?

j$.$ What is the difference between Harvard and a Von Neummann architectures?

k$.$ What is the difference between a microcontroller and a microprocessor?

$3\mathrm{.}14$ Problems

$153$

If the address of the double word $2$AF$30456$h is $0402h,$ what are the physical addresses of the individual bytes in a little endian memory system?

m$.$ Repeat the previous question for a big endian system. $*$SOLAMENTE I & M$*$