소리의 세기나 전기적 신호의 강도를 나타내는 상대적인 단위.
A unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.
예문:
"The noise level in the factory often exceeds 90 dB."
"Normal conversation usually takes place at around 60 dB."
컴퓨터 시스템에 저장되어 효율적으로 검색하고 관리할 수 있도록 구조화된 정보의 집합.
A structured set of data held in a computer, especially one that is accessible in various ways.
예문:
"The developer is migrating the user info to a new DB."
"We need to optimize our DB queries to improve website speed."