Unit 1
What two values do bits represent?
On and off or 1 or 0
What is Internet protocol?
Unique identifying number of devices
Code runs in Order, Top to Bottom
This structure lets a program make decisions based on whether a Boolean expression is true.
What is an if-statement?
This term means “data about data,” including source, units, or description.
What is metadata?
With 8 bits how many numbers can you represent?
256 distinct numbers, 0 to 255
What is a computing network?
In Sequential programming
1. Set background to blue
2. Set Background to orange
What would the outpout look like
It would be a orange background
This operator requires both conditions to be true.
What is AND (&&)?
This chart groups numeric values into ranges to reveal patterns that a bar chart hides.
What is a histogram?
What is the difference between lossy and lossless compression?
No data is lost during lossless compression
What is a packet?
A piece of data transported across a network
What is the main difference between sequential and event-driven programming?
Sequential programs execute line by line, while event-driven programs respond to user actions.
This keyword immediately stops the function and sends back one value.
What is return?
This step fixes inconsistent values like “Feb,” “febr,” and “February” so the dataset is usable.
What is cleaning data?
What happens when you try to add numbers when a computer is out of bits?
An overflow error
What is Digital Divide?
Unequal access to computing technology
What is Event-Driven Programming
Waits for a trigger to make a action
When a function declares a variable inside its block, this type of variable cannot be accessed outside the function.
What is a local variable?
This type of hidden issue in a dataset occurs when values look correct but follow multiple internal formats that a computer cannot compare.
What is an inconsistent representation error?
How is analog data converted to digital data?
Through measuring analog signals at regular intervals, also known as sampling
What is redundancy?
Multiple paths across devices in a network
In an event-driven app, what determines when the code inside an onEvent block executes?
A specific user action, such as tapping a button.
This conditional pattern prevents multiple branches from being checked once one condition is true.
What is an if–else if–else chain?
This happens when an algorithm trained on historical data continues unfair patterns, even if the code itself has no explicit bias.
What is algorithmic bias from biased training data?