Embedded Systems Flashcards
What’s the meaning of embedded systems?
It’s an entire computer system built-in into a larger product e.g. like dishwashers
What’s the design principle of embedded systems?
Typically to aid in the industry, it can have a medical application
What embedded systems strive for?
Low energy uses hence energy classes are present, smaller and smaller chips and it has to be fast and reliable
What’s ubiquitous computing?
Cultural movement - applies that embedded systems to human interaction such as artistic intentions
Who’s was the founder of ubiquitous computing?
Marc Wiser, 1988
What’s mindful computing?
People being freaked out due to loss of control over AI and computers
Explain an inside embedded system function
- Receives data from the world
- Sends the data to the sensor then through ADC to a microcontroller
- Microcontroller gives it an IP and FPGA
- DAC
- Actuators that cause events in the world
What’s a sensor?
Capture physical or chemical to convert it to analogue electricity
What’s an actuator?
To put into action or motion
What’s an ABS in a car?
Anti-lock brake system
What does microcontroller include?
Low power CPU, memory often Harvard Architecture, analogue to digital conversion and I/O modules
What’s a consequence of having microcontroller in your system?
- Size, although it can fit everywhere
- Performance is lower than a desktop CPU
- Cheaper
- Low power consumption
- Higher battery life
Microcontroller’s memory is…
…much smaller than PC’s but faster than SRAM and is volatile can store temporary data
What’s a timer
Measures elapsed time for each cycle
What’s a counter
Counts number of times an event or process occurred
