Basics

Basics

Sublayers of Data Link Layer

Data Link Layer has two sublayers, Logical Link Control (LLC):This is the uppermost sub-layer, LLC consists of protocols…

July 22, 2021 · Rajil TL

Basics

Classification of Modems

Modem word came from the combination of two words modulator and demodulator. A modem is a hardware device…

July 22, 2021 · Rajil TL

Basics

Types of Modems

• Modems can be of several types and they can be categorized in a number of ways. •…

July 22, 2021 · Rajil TL

Basics

What is a Modem?

Modem is abbreviation for Modulator – De-modulator. Modems are used for data transfer from one computer network to another computer network through telephone…

July 22, 2021 · Rajil TL

Basics

Quadrature Phase Shift Keying

The Quadrature Phase Shift Keying QPSKQPSK is a variation of BPSK, and it is also a Double Side Band Suppressed Carrier DSBSCDSBSC modulation…

July 22, 2021 · Rajil TL

Basics

Phase Shift Keying

Phase Shift Keying PSKPSK is the digital modulation technique in which the phase of the carrier signal is changed by…

July 22, 2021 · Rajil TL

Basics

Frequency Shift Keying

Frequency Shift Keying FSKFSK is the digital modulation technique in which the frequency of the carrier signal varies according to…

July 22, 2021 · Rajil TL

Basics

Amplitude Shift Keying

Amplitude Shift Keying ASKASK is a type of Amplitude Modulation which represents the binary data in the form of variations…

July 22, 2021 · Rajil TL

Basics

What is parallel transmission?

When data is sent using parallel data transmission, multiple data bits are transmitted over multiple channels at the same time. This…

July 22, 2021 · Rajil TL

Basics

What is serial transmission?

When data is sent or received using serial data transmission, the data bits are organized in a specific order, since they…

July 22, 2021 · Rajil TL