J
- jointed arm
- Jordan network
- joule
- journal
- journaling
- journaling file system
- journalism
- journalist robot
- journalizing
- Jovial
- joypad
- joystick
- joystick port
- joystick-controlled robot
- JPEG
- JPEG compression
- JPEG XR
- JPEG-encoded image
- JPEG2000
- JPL
- jQuery
- JRC
- JRE
- JRuby
- JS
- JSAI
- JSB
- JScript
- JSNM
- JSON
- JSP
- JSQL
- JSR
- JST
- JTA
- JTACS
- JTAG
- JTAG chain
- JTAG interface
- JTAG port
- JTAG-based debug
- JTAPI
- JTC
- JTS
- judgement
- judgement sample
- jukebox
- Julia
- jump
- jump address
