CD-ROM Full Form

What is the full form of CD-ROM?

The full form of CD ROM is Computer Disc Read-Only Memory is referred to as CD-ROM. Before the CD-ROM with its youthful promise of limitless information entered our system, it already existed in all its non-erasable, non-writable glory. Read-Only Memory, or ROM, is a memory that cannot be changed or erased.

1. Introduction

The optical reader's laser beams are used to read binary (digital) data that is stored on tiny pits in the optical disc. It is an optical disc with the ability to store data, music, video, games, and other types of files.

A more capable storage medium, the digital video disc (DVD), was introduced in 1995 to handle the proliferation of ever-larger multimedia files (audio, graphic, and video) in computer games, educational software, electronic encyclopaedias, and high-definition movies for television entertainment systems. A storage medium with even more capacity, the Blu-ray, was introduced in 2002.

The use of CD-ROMs, however, has decreased in the twenty-first century due to the increased storage capacity of computers and the simple distribution of large files over the Internet.

2. History of CD-ROM

Danon, a Japanese company, introduced the CD-ROM format in 1982. Later, at the 1985 COMDEX computer show in Japan, Danon and Sony unveiled the CD-ROM. The CD-ROM gained popularity after this and was widely used. It began to evolve on its own. In 1983, Sony and Philips unveiled the CD-ROM format, also known as the Yellow Book.

3. Characteristics

• The CD-ROM is made of transparent polycarbonate plastic that has been coated with reflective material and covered with a clear lacquer for protection.
• Only CD-ROM Readers are capable of reading CD-ROM. The CD-ROM discs cannot be read by standard readers.
• Up to 700 Megabytes of data, or about 3,000 typewritten pages, can be stored on a CD-ROM.
• It can also store full motion video, animated graphics, still images, and audio.

4. Advantages of CD-ROM

• Random access can be made to CD-ROM.
• The most economical method for creating and disseminating large amounts of data is via CD-ROM.
• A CD-ROM is extremely durable when compared to other storage discs.
• It has a long lifespan.
• Large amounts of read-only data can be stored on it safely.

5. Disadvantages of CD-ROM

• The main criticism is that they function fairly slowly.
• New data cannot be entered into it after it has been filled with existing data.
• less storage space than hard disks can hold.
• It is easily scratchable, and once scratched, it won't function properly.