The Tech Storror

  Analog and Digital Transmission Analog Signal: The system in which variable signal i.e. the signal can have any meaning at any time, is called analog signal. This signal is used for data processing in analog devices like radio, TV etc. The wave/shape of an analog signal is-- Digital Signal: The level of the signal is variable, i.e. the level of the signal changes over time in a certain step, it is called a digital signal. This signal is used for data processing in digital devices like computers, digital clocks etc. The wave/shape of a digital signal is-- Carrier Signal: Carrier signal is a type of high frequency signal, which is used as a carrier wave to transmit electrical signals to distant places. - The wave/shape of carrier signal is the difference between analog, digital and carrier signal: The difference between analog, digital and carrier signal is given below-- Analog signal (i) A system in which the signal is variable i.e. the signal can have any value at any time, is ca...

Wireless media: Wireless communication is a type of communication system that does not require any type of cable. In wireless communication, the sending device connects one computer to another computer or one device to another device through the radio web. Characteristics of Wireless Media: Wireless media do not use electrical or optical conductors or wires. In most cases, the Earth's atmosphere acts as the physical path for data transmission. Wireless systems are used when there are obstacles in the way of data transmission and installation of wired media is problematic. The three types of wireless media are -- (i) Radio Wave  (ii) Microwave   (ii) Infrared Radio wave: Network data is transmitted through radio transmission in the same way that signals are transmitted in radio. In this case every computer in the network can receive the signal sent by it. Radio wave frequencies are limited to 10 kHz to 1 GHz. The limited electromagnetic spectrum between 10 kilohertz and...

Resolution refers to how many pixels there are on a camera or computer or mobile device screen. That is, it can be understood that if there are more pixels in a certain place, the resolution will be better and something displayed on the display will look very good. Again, if the pixels are less in certain places, then the resolution is bad, it means that the image or video will look bad and not as clear as it should be. Simply put, if the resolution is low, the image will not be clear. If I tell you with an example, then I think that your brain is very easy. For example, a 1080 pixel image can be seen on a 5-inch monitor, but on the other hand, it will not be as good on a 20-inch monitor. Because there are more pixels less space. ppi means pixel per inch and ppcm means pixel per centimeter. That is, how many pixels there are in 2 inches or 12 inches, we determine with ppi. There are different types of resolutions that we hear when we buy a monitor or a mobile. Among them, the most used...