7 Set Question of "COMPUTER ARCHITECTURE"

1. Simplify the following expressions in (1) sum-of-producs formand (2) Product-of-sums form.
    x'z'+y'z'+yz'+xy

2. The width of the bus is 2 bits, calculate

• Size of the register
• How many multiplexer that must be used for the bus construction? How many input leg output log for a multiplexer
• How many Decoder that must be used for the bus construction? How many input leg output log for a multiplexer
• Draw the diagram showing the connection between all the device

3. Explain and draw the block of diagram bus Transfer of the basic computer below

• The bus selected 2 devices source and destination
• Selected device give the data to the bus (Bus < Reg)
• Selected device destination recieved

Destination			Received
S2	S1	S0	Source Device
0	0	0	no selection
0	0	1	AR
0	1	0	PC
0	1	1	DR
1	0	0	AC
1	0	1	IR
1	1	0	TR
1	1	1	Memory

4. Construct the Arithmetic circuit which work as in the given functions in the table below, all the information will be used for the circuit construction
Draw your Arithmetic circuit

S1	S0	cin	y	output	Microoperation
-	-	-	-	D=A+Bi	Subtract with borrow
-	-	-	-	D=A+Bi+1	Subtract
-	-	-	-	D=A+B	Add
-	-	-	-	D=A+B+1	Add with carry
-	-	-	-	D=A+1	Increment A
-	-	-	-	D=A	Transfer A
-	-	-	-	D=A-1	Decrement A

5. figure image below

• How many conditions that effect to the Data Register? list all of them
• How many conditions for loading data into DR? list all of them
• How many conditions for Increment data into DR? list all of them
• How many conditions for clearing data DR? list all of them
• Draw the logic diagram for control signals of the DR

6. Image figure below

• How many conditions For E Register? list all of them
• What is the equation for log J of the flip flop?
• What is the equation for log K of the flip flop?
• Draw the diagram for generating the control signals for E register using the following figure

7. Construct the diagram for controlling the selection of the common bus when the memory is selected as the source Set of the basic computer instruction

• The list of machine code is for and addition of two number
• Translate the binary machine code to the equivalent hexadecimal
• Show the list code using OP.code symbol and explain the action of the OP.code
• What is the final result of the execution