SDA

SDA or sda may refer to:

Science and technology

Computing

• /dev/sda, the first mass-storage disk in Unix-like operating systems
• T-Mobile SDA, a smartphone
• Screen Design Aid, a utility program used by midrange IBM computer systems
• SD Card Association, responsible for Secure Digital memory card standards
• Serial Data Signal of an I²C electronic bus
• Slow DoS attack
• Symbolic data analysis

Life sciences

• Sabouraud dextrose agar , microbiological media allows fungus to grow
• Serotonin–dopamine antagonist, atypical antipsychotic
• Specific dynamic action, the thermic effect of food
• Stearidonic acid, omega-3 fatty acid
• Structured digital abstract, describing relationships between biological entities

Other uses in science and technology

• Scratch drive actuator, a microelectromechanical device
• Space domain awareness, the ability to detect, track, and characterize passive and active space objects
• Stereo Dimensional Array, a Polk Audio technology

Organizations

Educational institutions

• San Dieguito Academy, Encinitas, California, US
• SDA Bocconi School of Management, in Milan, Italy

Political groups

• Secular Democratic Alliance (India)
• Singapore Democratic Alliance
• Social Democratic Alliance (UK)
• Stranka demokratske akcije ("Party of Democratic Action"), in Bosnia and Herzegovina
• Social Democratic Alliance in Vietnam
• Party of Democratic Action of Sandžak (Stranka demokratske akcije Sandžaka), a political party in Serbia

Other organizations

• SD Card Association, responsible for Secure Digital memory card standards
• Security & Defence Agenda, a Brussels-based think-tank
• Seventh-day Adventist Church, a Protestant Christian denomination
• Shop, Distributive and Allied Employees Association, Australia
• Space Development Agency, a DoD RDT&E agency
• Systemic Design Association, for systems design
• Swiss Telegraphic Agency (Schweizerische Depeschenagentur)

Other uses

• SDA Tennis Open, a tournament held in Bercuit, Belgium
• Saddam International Airport, airport code SDA
• Same-day affirmation of financial market deals
• San Diego and Arizona Railway, reporting mark SDA
• Severe Disablement Allowance, a UK state benefit
• Southern Domestic Airspace, Canada
• Specially denatured alcohol
• Speed Demos Archive of video game speedruns