| Subject | English | Chinese Taiwan |
| comp., MS | double bang | 雙重否定 (A double negation operator (!!), used to force a Boolean return value) |
| comp., MS | double byte character set | 雙位元組字元集 (A character set that can use more than one byte to represent a single character. A DBCS includes some characters that consist of 1 byte and some characters that consist of 2 bytes. Languages such as Chinese, Japanese, and Korean use DBCS) |
| comp., MS | double-byte character set | 雙位元組字元集 (A character set that can use more than one byte to represent a single character. A DBCS includes some characters that consist of 1 byte and some characters that consist of 2 bytes. Languages such as Chinese, Japanese, and Korean use DBCS) |
| comp., MS | double-byte characters | 雙位元組字元 (A set of characters in which each character is represented by two bytes. Some languages, such as Japanese, Chinese, and Korean, require double-byte character sets) |
| comp., MS | double-click | 按兩下 (To press and release a mouse button twice in rapid succession without moving the mouse. Double-clicking is a means of rapidly selecting and activating a program or program feature) |
| comp., MS | double-click speed | 滑鼠鍵按兩下速度 (The maximum interval between the first and second time a user presses a button on a mouse or other pointing device that will still identify these actions as a double-click to the computer as opposed to two single-clicks) |
| comp., MS | Double Data Rate Synchronous DRAM | 同步雙倍資料傳送動態隨機存取記憶體 (A type of SDRAM that supports data transfers on both edges of each clock cycle (the rising and falling edges), effectively doubling the memory chip's data throughput) |
| comp., MS | Double data type | 雙精確度資料類型 (A fundamental data type that holds double-precision floating-point numbers. It's stored as a 64-bit number ranging in value from approximately -1.797E308 to -4.940E-324 (negative), from 4.94E-324 to 1.797E308 (positive), and 0) |
| comp., MS | double-density disk | 雙密度磁碟 (A disk created to hold data at twice the density (bits per inch) of a previous generation of disks. Early IBM PC floppy disks held 180 KB of data. Double-density disks increased that capacity to 360 KB. Double-density disks use modified frequency modulation encoding for storing data) |
| comp., MS | double-hop connection | 雙躍點連線 (A connection that goes from one computer to another computer to a third one) |
| comp., MS | double-peak contour | 雙峰分佈 (A contour that contains two high points in the curve) |
| comp., MS | double-precision | 雙精確度 (Characteristic of a number stored in twice the amount (two words; typically 8 bytes) of computer memory that is required for storing a less precise (single-precision) number. Commonly handled by a computer in floating-point form) |
| comp., MS | double-precision floating-point format | 雙精確度浮點數格式 (A computer number format that occupies 8 bytes (64 bits) in computer memory and represents a wide dynamic range of values by using floating point) |
| comp., MS | double-sided disk | 雙面磁碟 (A floppy disk that can hold data on both its top and bottom surfaces) |
| comp., MS | double-tap | 點兩下 (To tap twice quickly on a screen or touchpad) |
| comp., MS | LEFT DOUBLE QUOTATION MARK | 左雙引號 (The " character) |
| comp., MS | Right Double Quotation Mark | 右雙引號 (The " character) |
| comp., MS | Speed Up, Double | 加快速度，兩倍 (A filter effect in Windows Movie Maker) |