Calculate Throughput for a Fixed Workload
Divide total tasks by the stated constant throughput using matching time units.
About 22 minutes, plus any extended practice
Open lesson 1Compare Systems under Explicit Constraints
Compare a model with 40 tasks at 8 tasks/s, latency samples[1,1,1,1,8]seconds and a 50 Wdevice used 4 hours. Report duration,mean,max and bounded energy.
Before you begin
- Divide rates and convert watt-hours to kilowatt-hours.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Read a Tail Observation as well as an Average
Compare the maximum recorded latency with the average rather than replacing one measure with the other.
About 22 minutes, plus any extended practice
Open lesson 2Estimate Computing Energy with a Stated Model
Multiply watts by hours and divide by 1000 to express modeled energy in kilowatt-hours.
About 22 minutes, plus any extended practice
Open lesson 3Choose a System by Stated Criteria
Eliminate options that fail required constraints, then explain the remaining tradeoff.
About 22 minutes, plus any extended practice
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.
Topic references
- 2026 CSTA PK–12 Computer Science Standards: topic reference — Systems & Security; Computing & Society
These references informed the topic selection. They do not certify complete standards alignment.