Skip to main content

Explain Advantages of CD and DVD and Differences Between CD and DVD

Topic: Explain Advantages of CD and DVD and Differences Between CD and DVD

 What is CD?

CD stands for Compact Disc. Compact Disk or CD is a popular storage device. It is a portable storage device. It can store about 700 MB (Mega Bytes) of data.

Advantages of Compact Disk

  • It can store large amounts of different types of data. It can store information in the form of sound, videos, programs or software, pictures and other graphics, documents and many more formats of data.
  • We purchase games and software stored on CDs. CD can store audio/ video songs and videos, too.
  • It is very inexpensive way of storing large amounts of data permanently.
  • It is used for backing up of important data, that can be recovered in future if any data is lost from our PC's hard disk.
  • Compact Disks are easy to use and easy to carry.
  • Compact Disks are durable and reliable. CDs can store data for many years without losing a single byte.

Different Types of Compact CDs are:

CD-ROM (Compact Disk Read Only Memory)

CD-ROM comes with already stored data on it, like games or software. As the name CD-ROM says, data can not be deleted or edited on CD-ROM. We can only read or copy data from CD-ROM.

CD-R (Compact Disk Recordable)

Compact Disc Recordable is a blank disk. We can store data on it with the help of CD-Writer only once. Then it becomes CD-ROM. So, we can only read data. We cannot change or delete data.

CD-RW ( Compact Disk Rewritable)

CD-RW disk is more useful type of Compact Disk. We can write data on CD-RW many times. We can read data, write data, erase data and rewrite data on CD-RW for many times.

What is DVD?

DVD stands for Digital Video Disk or Digital Versatile Disk. The basic difference between CD and DVD is that DVD has much more data storage capacity. DVD can store data up to 17 GB (Giga Bytes).

Advantages of DVD


  • DVD can store much more larger amounts of different types of data as compared to CD. It is used to store HD movies. It can store information in the form of sound, videos, programs or software, pictures and other graphics, documents and many more formats of data.
  • We purchase high quality movies, games and software stored on DVDs.
  • It is very inexpensive way of storing large amounts of data permanently. Although it is more expensive than CD but it can store much more data.
  • It is used for backing up of important data, that can be recovered in future if any data is lost from our PC's hard disk.
  • DVDs are easy to use and easy to carry.
  • DVDs are durable and reliable. DVDs can store data for many years without losing a single byte.

Different Types of DVDs are:

DVD-ROM (Digital Video Disk Read Only Memory)

DVD-ROM comes with already stored data on it, like movies, games or software. As the name DVD-ROM says, data can not be deleted or edited on DVD-ROM. We can only read or copy data from DVD-ROM.

DVD-R (Digital Video Disk Recordable)

Digital Video Disc Recordable is a blank disk. We can store data on it with the help of DVD-Writer only once. Then it becomes DVD-ROM. So, we can only read data. We cannot change or delete data.

DVD-RW ( Digital Video Disk Rewritable)

DVD-RW disk is more useful type of DVD. We can write data on DVD-RW many times. We can read data, write data, erase data and rewrite data on DVD-RW for many times.

Here we tabulate the main differences between CD and DVD.



Sr. No
CD
DVD
1
CD stands for Compact Disk
It stands for Digital Video Disk or Digital Versatile Disk.
2
CD can store about 700 MB of data. So, data storage capacity is much smaller than that of DVD.
DVD can store up to about 17 GB data. Therefore, data storage capacity is much larger than that of CD.
3
Technology to read/write on CD uses a laser beam of larger wave length that makes larger pits (tiny holes) on CD. Each pit represents a binary 1.
Technology to read/write on DVD uses a laser beam of shorter wave length that makes smaller pits (tiny holes) on DVD. Each pit represents a binary 1. Therefore, there will be more pits on DVD surface than that of CD. So there will be more data storage capacity of DVD than that of CD.
4
CD is cheaper than DVD.
DVD is more expensive than CD.
5
CD has slower data transfer rates.
DVD has faster data transfer rates.
6
Different types of CD include: CD-ROM, CD-R and CD-RW.
Different Types of DVD are: DVD-ROM, DVD-R and DVD-RW.


You may also like:

Discuss Differences Between RAM and ROM
System Software and Application Software:Differences
Differences Between Data and Information
Differences between LAN and WAN

CRT Monitors and Flat-panel LCD Monitors Differences
Difference Between Electronic Market and IOS
Difference Between Debit Card and Credit Card 

Computer Hardware Concepts

2.1 What are Different Types of Hardware
2.2 What are Different Types of Input Devices
2.3 Explain Different Types Of Output Devices
2.4 Explain Parts of CPU and its Working
2.5 What are Dual Devices or Both Input/ Output Devices
2.6 What is RAM, Explain Different Types of RAM
2.7 What is ROM Explain Different Types of ROM
2.8 Discuss Differences Between RAM and ROM
2.9 Explain different types of storage devices
2.10 What are Pointing Input Devices
2.11 Different Types of Mouse Input Device
2.12 Types Of Scanners Input Device


Labels:

Comments

Post a Comment

Popular posts from this blog

Uses Of Computer In Education Field

Computer can be used in education in the following ways:  Computers In Teaching and Learning Process ( Computer Aided Learning - CAL ) Computers are being used actively in educational institutes to improve the learning process. Teachers can use audio video aids through computer to prepare lesson plans. They can use Microsoft Power Point to prepare electronic presentations about their lectures. These electronic presentations will be displayed on multimedia projectors in class rooms. This will be interesting and easy to learn for students. Multimedia presentations are easy to deliver for teachers too, These presentations save a lot of effort and time. Moreover multimedia presentations are interesting to view and hear sound and visual  effects. Computers will be helpful for:                        Instructing the students using PowerPoint slides, Word documents or Web pages and using hyperlinks for be...
1 comment
Read more

Types Of Network Topology

Today, we will types of network topology . What is a Network Topology? Definition of Network topology is the shape of the network . It is the physical layout of connected devices in a network. It tells us how a network will look like. Network Topology ( Definition 2) : The way in which the connections are made among all the network entities is called the topology of the network. Network Topology ( Definition 3) :Network topology specifically refers to the physical layout of the network, e.g., the location of the computers and how the cable is run between them. Network Topology ( Definition 4) :The physical topology of a network refers to the configuration of cables, computers, and other peripherals. The characteristics of a network depend upon the network topology selected. types of network topology Explain different types of network Topology Different network topologies are as follows: 1. Bus Topology 2. Ring Topology 3. Star Topology 4. Tree Topolo...
2 comments
Read more

Types Of e-Commerce

Types/Categories/Modes of e-commerce. There are three main types of e-commerce as follows: 1) Business To Consumer (B2C) B2C ecommerce consists of selling goods and services to individual consumers. In this type, consumers or customers can visit the website and purchase goods online. The website will have a StoreFront. This storefront will show product details, pictures and a shopping cart. Shopping cart is used to collect items to purchase. Advantages of B2C e-commerce B2C e-commerce has the following advantages: * Shopping can be faster and more convenient. * Offerings and prices can change instantaneously. * Broadband telecommunications will enhance the buying experience. 2) Business To Business (B2B) B2B e-commerce takes place between two businesses. One business provides services to other business. Examples of B2B include: Online Advertisement, recruiting, sales, marketing, technical support and training. For eample, some companies provide online purchasing...
5 comments
Read more