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

Basic Structure of HTML Document

Basic Structure of HTML Document  The basic structure of an HTML document is given below: <HTML>         <HEAD>                  </HEAD>                 <BODY>                </BODY> </HTML> The above format shows that an HTML document starts with <HTML> tag and ends with </HTML> tag. It is also clear that an HTML document consists of two main sections:  Head Section Head section is used to specify a title of the web page, normally. There are some other uses of Head section too, like linking external style sheets and Java script code, etc. Head section starts with the <HEAD> tag and ends with the </HEAD> tag. <TITLE> tag is used to display a title of...
Post a Comment
Read more

What are Different Types of Input Devices With Examples

Topic: Different types of input devices of a computer system with examples, pictures and explanation:  Topics Covered are: Definition of Input Devices Functions of Input Devices ( How input devices work? ) Examples of Input Devices Pictures / Images of different input devices Different Examples of Input Devices With Description Keybboard Mouse Trach Ball Trackpad Joy Stick Light Pen Microphone Scanner Graphic Tablet ( Digitizer ) Digital Camera Touch Screen ( I/O Device / Dual Device - Perform Both Functions input + Output ) INPUT DEVICES ( Definition ) Input devices are used to enter data and instructions into computer memory from external world. Input Device is a hardware part of the computer that is used to enter data and instructions into computer memory. The examples of input devices include: Keyboard, Mouse , Track ball, Track Pad, Joy stick, Touch Screen, Light pen,   Scanner , Digital Camera, Microphone, Graphics tablet e...
Post a Comment
Read more

What are Different Types of Computer Hardware

What is Hardware? The physical parts of a computer are called hardware. Hardware can be touched or seen by us. For example, hard disk, mouse, keyboard, CD, CD-ROM Drive, Floppy Disk, Speakers, Modem and Printers - all are computer hardware. Explain different types of computer hardware Different types of hardware components on the basis of the functionality  they provide are as follows: 1.    Input devices Input devices are used to enter data and instructions into computer. Examples of input devices are: Keyboard, mouse, scanner, digital camera etc. Microphone Mouse Keyboard 2.    The Central Processing unit Central processing unit is the brain of the computer . It is also called CPU or Processor. Intel is the leading manufacturer of microprocessors. For example, Intel Pentium IV 3.2 MHz is an example of a CPU. You can see the images of processors / Micro processors or CPUs. Images of CPU or Microprocessor or s...
Post a Comment
Read more