Data compression definition in computer networks

  • Text compression techniques

    Compression of data is often necessary when transmitting across a network for several reasons: Reducing bandwidth requirements: Compressing data can reduce the amount of data that needs to be transmitted, which can help to reduce the amount of bandwidth required to transmit the data.Jan 11, 2023.

Before You Begin

Conventions

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Data Compression

Data compression can be broadly classifed into Hardware and Software compressions.
Furthermore Software compression can be of two types, CPU-intensive or Memory-intensive.

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Introduction

Data compression reduces the size of data frames to be transmitted over a network link.
Reducing the size of a frame reduces the time required to transmit the frame across the network.
Data compression provides a coding scheme at each end of a transmission link that allows characters to be removed from the frames of data at the sending side of the .

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What is a compressed file?

For data transmission, compression can be performed on the data content or on the entire transmission unit, including:

  1. header data

When information is sent or received via the internet, larger files -- either singly or with others as part of an archive file -- may be transmitted in a ZIP, GZIP or other compressed format.
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What is data compression?

Data compression is a reduction in the number of bits needed to represent data.
Compressing data can save storage capacity, speed up file transfer and decrease costs for storage hardware and network bandwidth.
Compression is performed by a program that uses a formula or algorithm to determine how to shrink the size of the data.


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