布爾代數中的一種運算，它同時對兩個二進位數字進行如下操作：如果一個數或二個數為1，則結果為1；如果二個數均為零，則結果為零。它的邏輯算符是OR運算符。
An operation performed in Boolean algebra on two binary digits simultaneously in a way that the result is one if either one or both digits are a one, or zero if both digits are zero. The logic operator is the OR operator.
在計算技術和通信技術中，作為一個整體來處理的一組8個二進位數字。見octal。
In computing and communications, a group of eight binary digits treated as an entity.
用於表示十進位數的一種二進位編碼的十進位碼，其中每位十進位數用七位二進位數來表示，它們分別是8，6，4，2，0，1和0的係數。五－二碼錶如下：
A binary-coded decimal code for representing decimal numbers in which each decimal digit is represented by seven binary digits which are coefficients of8,6, 4,2, 0,1, 0, respectively.
一種低速輸入設備，它將圖形和圖象數據轉換成用於數字計算機的二進位數值輸入。
A low-speed input device that converts graphic and pictorial data into binary, numeric inputs for a digital computer.
