Reflections and interesting ideas for new digital and analog online electronics, the sale of which has had a significant boost over the years.
Electronics online
The sale of electronics online has been widespread especially in recent years with the growth of specialized electronics stores able to provide the user with a vast assortment that includes small and large appliances, components and accessories of consumer electronics, home theater for cinema. at home, hi-fi stereo systems for high-fidelity reproduction of your favorite music, mp3 cd stereo radio audio systems, digital cameras of the best brands, lcd and plasma televisions, lcd video projectors, fixed and portable air conditioners, air conditioners without external unit .
Analog and digital electronics
There is commonly talk of analog electronics and digital electronics to better represent the two major sectors in which electronics is divided into general.
Analog electronics manages variable analog signals in the time unit continuously and therefore potentially capable of assuming any value at any time.
Just think of the human voices, the sounds of music, the changing luminous intensities whose signals can be electronically manipulated with an amplification system, amplitude modulation, mixing on various levels and more or less accurate filtering.
Digital electronics instead deals with electrical signals capable of assuming only predetermined voltage values which conventionally use the binary system based on defined logical values.
An integrated circuit, commonly called "chip" from the English term, is an electronic circuit formed by electronic microcomponents such as transistors, diodes, capacitors and resistors mounted on a base of semiconductor material.
With the term audio we wanted to give a name to the electronic information that represents the sound reproduced after passing through special electronic equipment in the form of electric current in order to be processed and returned to space through the conversion of the electrical signal into mechanical through the setting vibrating the membrane of a speaker.
When we talk about video we mean instead that electronic information that has the purpose of representing moving images. There are several video connections that can be divided into the following two groups:
Digital television
Super Hi-Vision or Ultra High Definition Television, HDTV or High Definition Television, ATSC or Advanced Television Systems Committee, DVB or Digital Video Broadcasting, ISDB or Integrated Services Digital Broadcasting.
Analog television
MAC now obsolete European technology, MUSE or analog HDTV, NTSC or National Television System Committee, PAL or Phase Alternating Line, PALplus an extension of PAL in Europe, SECAM or Sequential color with memory.
