Robotics and compters

Robotics and Computers

By Belén Piña Fernández

Let´s go on

Index

‌Computer networks

Types of computer networks

Acording to their range

Depending of the way they are conected

Wired and wireless network

Electro magnetics waves

‌Operation of the internet

Bibliography

Computer Network

A computer network is a system that connects two or more computing devices for transmitting and sharing information. Computing devices include everything from a mobile phone to a server. These devices are connected using physical wires such as fiber optics, but they can also be wireless.

Types of Computer Network

Depending of the way they are conected

Acording to their range

There are more but these are the principals

Wired and wireless Network(I)

Wired Network:

• Definition:

In a wired network, devices are connected physically using cables or wires.

• Advantages:

Reliability: Wired connections are generally more reliable and stable compared to wireless connections.Security: Wired networks are considered more secure because they are harder to intercept than wireless signals.Speed: Wired connections often provide faster data transfer rates compared to wireless connections.

• Disadvantages:

Mobility: Devices are physically tethered to the network, limiting mobility.Installation: Setting up a wired network can be more complex and time-consuming due to the need for cables.

Wired and wireless Network(II)

Wireless Network:

• Definition:

In a wireless network, devices communicate with each other using radio waves or infrared signals without the need for physical cables.

• Advantages:

Mobility: Wireless networks allow for greater mobility as devices can connect without physical constraints.Ease of Installation: Setting up a wireless network is generally easier and more flexible than wired networks.Scalability: Wireless networks can be easily expanded to accommodate more devices.

• Disadvantages:

Interference: Wireless signals can be affected by interference from other electronic devices or physical obstructions.Security Concerns: Wireless networks may be more susceptible to unauthorized access if not properly secured.

Electro magnetics waves(I)

Electromagnetic waves are a fundamental aspect of electromagnetism, a branch of physics that studies the relationship between electric and magnetic fields. Electromagnetic waves are produced by the oscillation or acceleration of charged particles and propagate through space, carrying energy. These waves are characterized by their frequency, wavelength, and amplitude.

Electro magnetics waves(II)

Nature of Electromagnetic Waves: Electromagnetic waves consist of Alternating electric and magnetic fields that are perpendicular to each other and to the direction of wave propagation. They do not require a medium (such as air or water) to propagate; they can travel through a vacuum. Key Properties: Frequency (f): The number of oscillations or cycles per unit time, measured in Hertz (Hz). Wavelength (λ): The distance between successive points in a wave, such as crest to crest or trough to trough.

Electro magnetics waves(III)

Electromagnetic Spectrum: Electromagnetic waves cover away spectrum based on their frequencies and wavelengths. The electromagnetic spectrum includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. Speed of Light: All electromagnetic waves travel at the speed of light Amplitude: The maximum displacement from the equilibrium position. In the context of electromagnetic waves, it represents the intensity or strength of the wave.

Electro magnetics waves(IV)

Applications: Communication: Radio waves and microwaves are used for wireless communication. Medical Imaging: X-rays and certain types of electromagnetic waves are used in medical imaging. Technology: Infrared waves are used in remote controls, and visible light is crucial for optical communication and vision. Polarization: Electromagnetic waves can be polarized, meaning the oscillations occur in a specific direction. This property is often exploited in various applications.

Operation of the internet

It works by using a packet routing network that follows Internet Protocol (IP) and Transport Control Protocol (TCP). TCP and IP work together to verify that data transmission across the internet is consistent and stable, no matter which device you're using or where you're using it.

Bibliography

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