AP Computer Science Principles - Semester I | 62 Questions and Answers(A+ Solution guide)

Abstraction - Removing unnecessary details to focus on the essential characteristics. To break problems up into separate parts which can then be solved separately and recombined to form a complete solution. To focus on and use something based only on what it does and without concern for how that functionality is accomplished. Pulling out specific differences to make one solution work for multiple problems Aggregation - A computation in which rows from a data set are grouped together and used to compute a single value of more significant meaning or measurement. Common aggregations include: Average, Count, Sum, Max, Median, etc. For example, if some dataset contained information about how many hours of television people watched and included their age, you could "aggregate the data by age" and compute the average hours watched for each age group. You could also "aggregate by hours of TV watched" and compute the average age for each number of hours Algorithm - A precise sequence of instructions for processes that can be executed by a computer and are implemented using programming languages. (NOTE: this is the definition from the AP CS Principles framework) API - a collection of commands made available to a programmer ASCII - American Standard Code for Information Interchange. ASCII is the universally recognized raw text format that any computer can understand Asymmetric encryption - a type of cryptographic based on algorithms that require two keys -- one of which is secret (or private) and one of which is public (freely known to others)Bandwidth - Bandwidth is normally expressed in bits per second. It's the amount of data that can be transferred during