DVD

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/dvd

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the development period?Developed in 1995
2. What is the first commercial release date?November 1, 1996
3. What is a DVD and how does it work?A DVD, or Digital Versatile Disc, is a shiny plastic disc that stores video, audio, or computer data. It uses a tiny laser that reads tiny bumps and flat spots on the disc’s surface, turning those patterns into the information you see on a screen.
4. Why did DVDs replace CDs?DVDs can hold much more data—about 4.7 gigabytes—compared to a CD’s 700 megabytes. This extra space lets DVDs carry full movies, games, and big software packages all on one disc.

Optical Disc Data Storage: A method of storing digital information on a disc read by a laser, such as CDs and DVDs.
DVD-ROM (Read-Only Memory): A prerecorded optical disc containing data that cannot be altered or erased by the user.
Data Encoding: The process of converting information into a specific format, like the pits and lands on a DVD surface, for storage and retrieval.
Storage Capacity: The maximum amount of data that a storage medium, like a DVD, can hold, measured in bytes (e.g., gigabytes).