The procedure involves the use of a transducer that emits sound waves and receives the echoes produced by the bouncing of the waves off different tissues. These echoes are then processed to create real-time images that can be examined by medical professionals. Ultrasound imaging is considered safe and does not involve any ionizing radiation, making it suitable for frequent use. It has become an indispensable tool in modern medicine due to its versatility, cost-effectiveness, and ability to provide valuable diagnostic information.

CD: CD, short for Compact Disc, is a digital optical storage medium used for storing and playing back various types of digital data. Originally developed for audio recordings, CDs revolutionized the music industry in the 1980s. They offered superior sound quality and durability compared to cassettes and vinyl records. Over time, CDs evolved to store other types of data, including software, videos, and documents. They became a popular format for distributing computer programs, games, and multimedia content. CDs have a storage capacity of up to 700 megabytes and utilize laser technology to read and write data. However, with the advent of digital streaming and downloadable content, CDs have become less prevalent today. Despite their declining popularity, CDs still find use in certain industries, archival purposes, and for those who prefer physical media over digital formats