In CD, the recording or metal layer is situated on the top of disk. While the acquire size of DVD is 4.7 GB to 17 GB. There are few differences between CD and DVD, which are given below: S.NO CD DVD 1. Get hold of all the important CS Theory concepts for SDE interviews with the CS Theory Course at a student-friendly price and become industry ready. In DVD, RS-PC and EFMplus are used as the error correction codes.Īttention reader! Don’t stop learning now. A videodisc is constructed from a similar material because the CD however the method and therefore the layers area unit completely different, it’s used from each of the edges like 2 CDs area unit projected along. It renders videos with wonderful image quality and random access. it had been an acceptable replacement for the memory device because it offered the low-priced answer for storing a big quantity of knowledge.ĭVD stands for Digital Versatile Disk provides another for the videotape utilized in tape recorder (Video container Recorder) and fixed storage utilized in computer because the videodisc will acquire seven times larger quantity of the info relative to CD.
It uses a novel methodology of coding within which a 14-bit code indicates a computer memory unit and this coding technique conjointly helps in error detection. Differences between Black Box Testing vs White Box TestingĬD stands for Compact Disc was the primary step towards the thought of digital coding of the info.Class method vs Static method in Python.Snowflake Schema in Data Warehouse Model.Mapping from ER Model to Relational Model.Types of Keys in Relational Model (Candidate, Super, Primary, Alternate and Foreign).Difference between Primary Key and Foreign Key.Difference between Primary key and Unique key.Difference between Clustered and Non-clustered index.