What is a CPU? What is a GPU?
How many cycles per second can a 333 MHz processor perform?
How many cycles (steps of instructions) per second can a *quad core* 2.4 GHz processor (CPU) perform?
graphic credit = https://www.bbc.co.uk/bitesize/guides/zws8d2p/revision/2
What is memory and storage?
memory = RAM
storage = hard disk drive (HDD) or solid state drive (SSD)
What is ROM?
What software is stored in ROM on the motherboard?
What is the motherboard and what is a computer "bus"? (later in the semester = what does an audio bus do?)
What is input/output (I/O or IO) in computing?
keyboard, mouse, microphone, camera
What is a sensor = https://www.merriam-webster.com/dictionary/sensor
examples = temperature, humidity, light, weight
monitor, speakers, printer
What is a transistor, what did it replace, and why is it the most important invention of the 20th Century?
think of a transistor as a switch that opens and closes an electrical gate ... with a very small amount of electricity, a transistor can allow or stop large amounts of electricity from going through it
how a vacuum tube amplifies = https://www.youtube.com/watch?v=kRSiTog2-No
What form must data be in for a computer to be able to store and process it?
Understanding Binary (video)
denary = base 10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
binary = base 2 (0, 1)
Is a paper piano roll an analog or digital medium of storage?
List 2 different mediums on which media and/or information has been stored in analog format and 2 different mediums on which binary (digital) data has been stored.
What makes a computer a computer? (4 things)
What is the “Internet of Things” (IoT)?
What are microcontrollers and what products do you use every day that have microcontrollers in them? Are microcontrollers computers? How are SoCs different than microcontrollers?
Microcontroller (Arduino) vs. SoC (Raspberry Pi) (2,612 words / 20 minutes)
How do you calculate the Current (in Amps) for everything plugged into one circuit breaker in a room? (you do this so you won't plug in more gear than the breaker has electricity to support)
What is the max Amp load for most circuit breakers?
What is Voltage (measured in Volts), Current (measured in Amps), and Electrical Power (measured in Watts)?
How do you calculate Amps when only given Watts?
You need to know how many volts you are using. Is it plugged into a 120V plug (99% of stuff you will be using) or a 240V plug (that which your dryer plugs into)?
Watts = Volts * Amps
https://www.rapidtables.com/calc/electric/Watt_to_Amp_Calculator.html (the power factor is probably 1)