Modem:
The modem is a modem that requires the exchange of data between the computer and the digital signals. Digital Signal cannot go through Telephone Analog Signals. That is to send the message from one computer to another computer from the telephone line. Then use the modem. The signal coming from the computer is digital, it is powered by modem-assisted modem. The conversion of digital signals into an analog signal is called modulation.On the other hand, Analog signals are converted into digital signals. The process of converting the decryption is called demodulation. This action modem does this. There are two kinds of modems. External Modem and Under Modem
1) External Modem: - When a modem computer is connected to the outside. Then they are called outer modems. On one side, the modem is connected to the computer, on the other hand, the modem is connected to the telephone line.
2) Intermediate modem: - When the modem is added to the motherboard of the computer's CPU. Then they are called Modems. The only modem is attached to telegraph line.
The modem is used primarily for the Internet. The amount of seconds (bps) is taken on the unit beats for data mapping from the modem. The halal modem has a speed of 56 kbps.
A mobile company data card has been made available for laptops on the Internet. Tata, Reliance, and other data cards are available.
Webcam + pen drive:
Webcam
If you look at the movie, you are chatting with hero-heroine and when you are biting him, you see a heroine live picture on the monitor screen in one window. This is because the webcam is sitting in front of it. So in front of the webcam, the picture will be visible to another person. A webcam is like a video shoot camera. The output of the recording that he has been shooting shows you to look at the monitor screen. The webcam is captured by its megapixels, the more match megapixel, the more Claude the video will match. You can shoot a small program from home with a webcam. The webcam is connected to a USB port.
Pen Drive: -
A CD writer is required to store data in a CD. It is difficult to copy data where it is not a CD writer. Floppy cannot be used to store much of the big data as Floppy can be stored in very low data. Pen drive is a very useful tool at that time. Penn Drive has available pen drive from 256MB to 8GB at present. It is very easy to copy data into this. The way you copy a file into a PC and paste it on the other side, you can copy or paste the data in the pen drive. Pen Drive is connected to a USB port. If you want to access the pen drive by connecting to a PC, you open the My Computer and open the drive with the second drive named C: Drive. The pen drive now comes with the MP3 player so that you can use it for 2 types. To listen to songs and to copy data.
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