Block Diagram of Ordering Pizza

This article explains the block diagram of ordering pizza, including the steps involved in placing an order for pizza. It covers the process from finding the telephone number to the delivery of the pizza.

1)
The following block diagram of “ordering pizza” has shown in figure 1.
The guest finds telephone no from a web site, which is mentioned on the website.
Now, the guest dilled telephone number and he hears the tone of dialling.
The guest started a conversation with the host. The host asks how I may help you. The guest
requests for pizza, the host explain a menu of pizza according to pizza size and price. After
listing the guest, he selects pizza according to the menu.
Now, the guest has confirmed the pizza. The host takes an order and makes calls to the nearest
pizza centre to place the order on behalf of from guest. Now the host takes the address and
telephone number and payment methods, the payment was done at the time of pizza delivery.
This information has given to order clerk.
Now, the order clerk takes order from the host. The order clerk makes to call to pizza cook for
this order.
The pizza cook prepares for hot pizza. Now, this pizza has given to order clerk, he attached
payment receipt and address to the pizza box. Now, pizza was ready to deliver. The delivery
boys come and pick the order and delivery for specific address location and collect the cash from
guest and give order to the guest.
2)
The following block diagram of “the French and the Chinese ministers” conversation has shown
in figure 1.

The French prime minister directly conversation with the Chinese prime ministers has shown
above.
The Chinese prime minister has speck with the translator, who can translator chine to the French
language and send information through telephone. This information has given to the French
prime ministers.
If the French prime minister speaks with the chemises prime ministers then he can use as a
translator, who can converts French to Chinese language and send details to Chinese prime
minister and vice versa? This complete conversation had through telephonic.
3)
Consider the signal as shown in figure 3a.
Figure-3a
We can determine the amplitude, time period, frequency and phase angle from the waveform.

Consider the signal as shown in figure 3b.
Figure 3b
Consider the amplitude, time period, frequency and phase angle from the waveform.
Consider the signal as shown in figure 3c.
Figure 3c

Consider the amplitude, time period, frequency and phase angle from the waveform.
4)
a)
Consider the trigonometric wave expression has shown in figure 4a.
b)
Consider the trigonometric wave expression has shown in figure 4b.

c)
Consider the trigonometric wave expression has shown in figure 4c.

d)
Consider the trigonometric wave expression has shown in figure 4d.
5)
a)
Consider data has given below.
Consider the number of pixels
Consider the number of pixels sent per second
The total pixel has taken intensity values. Hence, therefore each pixel can represent the bits/sec.

Calculate the TV picture has bits/sec.
Hence, therefore the source rate or bits per seconds of the TV picture
b)
Consider the following data has given below.
Consider the Signal to signal noise ratio=
Calculate the channel capacity of the TV transmitter.
Hence, therefore the channel capacity has
6)
Consider the following data has given below.
Consider the isotropic Frequency
Consider the Shortest path
Now, we can determine the isotropic free space loss.
7)
a)
Consider the following details of data have given below.

Now, we can write the above equation (1) to solve the below mathematical expression.
The signal has periodic, the following signal represents a mathematical expression.
Therefore, consider the given signal has .
Hence, therefore the fundamental frequency is 100Hz has shown in a mathematical expression.
The following equation can be expressed as
Now, we applied Fourier transforms on both side, we get.
Now we can calculate the channel bandwidth.
b)
Consider the channel capacity of Nyquist criteria by using of
Consider the following mathematical expression for the Nyquist equation has shown below.
Determine the Bits/sec
The Bandwidth of the channel=400Hz
L=number of levels of signal.
Let, us Consider ,
Let, us Consider ,

Let, us Consider ,
8)
Consider the following Nyquist bit rate mathematical expression has shown below.
The equation of Nyquist
Therefore, we get the relation of bandwidth and signal level.
Consider the bandwidth” BW”.
Consider the signal level” L”
Bitrate has defined as data has terminated bits/sec.
In the following mathematical expression has defined as bandwidth of the channel is constant.
Therefore, bits per rate are directly proportional to the number of signal levels.
The Nyquist rate does not have the correct sampling signal. It is applicable only for theoretical
calculation.
DISADVANTAGES:
1) It has to oversample with over raging to get high precession.
2) It has a high complexity
3) It has a high cost
4) It has oversampling when takes more time, therefore system speed becomes slow down.
5) It has additional noise
6) Highest the power consumption

9)
Packet switching virtual circuit Circuit switching
1) It has small switching nodes.
2) It has a dynamic use of
bandwidth.
3) Packet switching does have
overhead bits in each packet.
4) The packet switching has speed
code conversion.
5) The packet switching has stored
until it delivers.
6) It does not have a dedicated
path.
7) It has delayed in call setup as
well as packet transmission.
1) It has electromechanical
switching nodes.
2) It has a fixed bandwidth.
3) Circuit switching does not have
overhead bits after call setup.
4) The circuit switching does not
have speed code conversion.
5) Circuit switching has stored the
message.
6) It has a dedicated path.
7) It has a call setup delay.
ADVANTAGES OF PACKET SWITCHING VIRTUAL OVER CIRCUIT SWITCHING:
1)
The circuit switching has only one data stream and one conversation, but the packet switching
virtual circuit has multiple numbers of data and conversations.
2)
The packet switching has allowed to equally sharing bandwidth resource but switching circuit
does not share equal bandwidth.
3)
The packet switching has a maximum length and it has stored in main memory itself. This can
reduce time delay rather than circuit switching.
4
The packet switching has widely used for video and voice call.
Example: Google Talk, Skype, What's app etc.

10)
Consider The following line of sight has shown in figure -10.
The line of antenna communicates transmitter and receiver antenna.
The following mathematical expression has shown below.
Therefore, Consider the
The transmitter antenna has a ratio of twice the receiver antenna, the mathematical expression
has shown below.
Let, us consider the d=40km.

Let us we consider the height of the transmitter antenna is and another antenna of
the receiver has height is