lec 2 osi model By Ahmed Abdallah

Data Transfer and Applications

• The device aims to send data to another device.

• There is a specific method for this process.

• Mention of software similar to Internet Download Manager.

Application Usage

• Various programs can be utilized for data transfer.

• Users will open their applications on any website.

• Example given includes voice and video communication tools.

Communication Tools

• Reference to using applications like Yahoo Messenger for communication.

• Discusses how users communicate through these platforms.

• Concerns about data integrity during transfers are raised.

Network Connectivity

• Describes the physical movement through stairs and elevators in a building.

• Explains reaching the network interface card (LAN).

• Discusses the reverse transformation process back to the original state.

User Interface Concepts

• Introduction of user interface as a key concept in applications.

• Importance of user experience in software design is highlighted.

File Formats and Compatibility

• Discussion on file types such as audio and video formats (e.g., MP3, AVI).

• Emphasizes that file extensions do not affect content perception by computers.