SIP and H.323 Protocols: Architecture, Components, and Functionality
SIP: Session Initiation Protocol
SIP (Session Initiation Protocol) is a signaling protocol used at the application layer to create, modify, and terminate sessions with one or more participants. These sessions can include voice, video, data, and other forms of internet media.
IETF Architecture Protocols
The IETF architecture includes protocols such as:
- RTP and RTCP: Provide real-time delivery of media.
- RTSP: A real-time streaming protocol that provides a supply-demand mechanism in real time.
- SDP: Session
Understanding Computer Architecture: Buses, Addressing, and Memory
Computer Bus Architecture
Bus: In computer architecture, a bus is a transport mechanism that logically connects several peripherals using the same set of wires. This concept is similar to a shuttle, facilitating internal data transfers within a computer system during operation.
A bus is defined as a set of electrical connectors, typically metal tracks printed on the motherboard, through which signals travel. These signals correspond to the binary machine language used by the microprocessor.
The main
Read MoreCryptography, Socket Programming, and Python OOP Concepts
Cryptography, Socket Programming, and Python OOP
Base64 Encoding | Base64 Decoding |
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import base64 #encoding |
import base64 #decoding |
Ciphers and Encoding
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Core Concepts in C and Python Programming
Role of Functions in Programming
Functions play a crucial role in programming by improving code organization, reusability, and efficiency. Here are five key roles of functions:
- Modularity: Functions break down a program into smaller, manageable blocks, making the code easier to understand and maintain.
- Reusability: Once defined, a function can be called multiple times, reducing redundancy and avoiding repetitive code.
- Abstraction: Functions hide complex logic behind a simple interface, allowing programmers
Python Programming Essentials
1. Operators in Python
Operators in Python are special symbols that perform operations on values and variables, called operands. There are seven types of operators in Python:
- Assignment Operator
- Arithmetic Operator
- Logical Operator
- Comparison Operator
- Bitwise Operator
- Membership Operator
- Identity Operator
2. Data Types in Python
Python supports various data types. Type casting, or converting between these types, is done using functions like int()
, float()
, complex()
, bool()
, and str()
.
int()
: Converts a value
Understanding Serial Communication, Conversions, and Voltage
Serial Peripheral Interface (SPI)
- [40HZ 18.75HZ 75000]
- 8 bit × 75000 samples/sec = 600000 bits/sec
- 24 × 10^6 / 6 × 10^5 = 40
- SPPR = 4, SPR = 2 => (4 +1) × 2^(2+1) = 40
SPPR (3bit) = 100 SPPR (3bit) = 010
- 100010
- 0100 0010 ⇒ $42
Communication Circuit Programming
- [baud rate = 19200 9bit = 8 + 1 …… ]
- (24 × 10^6) / (16 × 19200) = 78 = $004E
- 00,1 4E,1
- 13, 1
- 00011101
Conversions
- [1 Mega byte]
1MB =2^20 × 8bits= 8388608 bits
- [Binary 00100101 to decimal]
1×2^5 + 1×2^2 + 1×2^0 = 37
- [Hex $A23C to 16 Binary]