Yo, i made this from looking at the standards, Im gonna work on it more
tomorrow morning when i get up, but feel free to read it
Comp Sci FACTS:
Creativity: 0%
Abstraction: 19%
Data and Information: 18%
Algorithms: 20%
Programming 20%
Internet: 13%
Global Impact: 10%
2 Hours
74 Questions
Single-select: pick 1 answer
Multiple-select: pick 2 answers, all or nothing
Standards:
https://apcentral.collegeboard.org/pdf/ap-computer-science-principles-courseand-exam-description.pdf
Reference Sheet:
https://codehs.com/editor/resource/385731/542316/2639/1780
if a list index is less than 1 or greater than the length of the list,
an error message is produced and the program terminates.
If the robot attempts to move to a square that is not open or is beyond
the edge of the grid, the robot will stay in its current location and the
program will terminate.
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Abstraction can be categorized as either data abstraction or procedural
abstraction
○ Data Abstraction:
■ Bits -> Bytes -> Decimal -> ASCII
■ Bits -> Bytes -> Pixels -> .png
○ Procedural Abstraction:
■ Includes
■ Makes programs more readable and reusable
■ Dividing a program into subtasks (ie. functions)
Data and Information
○ Collection and computation of data is huge in Computer Science
■ Makes simulations robust
■ Makes google give you relevant results
■ Makes apps work
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Show how big an impact Data and Information has and how it solves
problems
■ Criminal Justice
■ Marketing
■ Medicine
Internet
○ Global Communication Network that society is dependent on
Big Idea 6 Internet:
○ Background:
■ Profound impact on society
■ Systems built on it have huge impact
■ What is it? How built? How function?
■ What helps it scale and flourish?
■ Cyber Security impacting users how?
○ Standards
Big Idea 7 Global Impact:
○ Background:
■ Computing innovations are innovations that include a
computer or program code as part of their function
■ Change how we work, live, and play
○ Standards:
■ Stuff that fosters new ways to collaborate and communicate
● Email, SMS, and chat
● Video conferencing and video chat
● Social media
● Cloud computing
● Internet
○ E-commerce
○ Health care
○ Positive and Negative productivityEffects
○ Ect…
■ Widespread information can be used to
● Id problems, dev solutions, and disseminate of
results
● Access to solutions to identified problems
(stackoverflow forums)
■ Search trends are predictors (google trends)
■ Social Media enhances information dissemination
● Arab Spring
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Computing creates assistive technologies and enhance human
capabilities
● GPS is the best and changes navigation, geographic
info gathering, and how humans travel
● Sensor Networks (ie sound tracking on streets) help
people interact with physical systems and environment
● Smart grids, transportation, and buildings are
changing and facilitating human stuffs
People participation problem solving
● Distributed Solutions must scale to solve some
problems
● Science helped by Citizen Science to solve scientific
problems
○ HIV solving game
● Human capabilities enhanced
● Some Online Services use contributions of many people
benefit both individuals and society
● Crowdsourcing for stuff
● Desktop computers to mobile computers
Computing impacts other fields
● Machine learning and data mining impact medicine
business and science
● Scientific computing has make business and science
innovation
● Sharing info quick
● Creative Commons and open source
● Open and curated scientific databases for researchers
● Moore’s law has encouraged industries to plan
research and dev based on computing power
Beneficial and Harmful Concerns
● Ethics and legal concerns
● Piracy
○ P2p
○ Both authenticated and anonymous access to
digital info raises legal and ethic concerns
○ Licensing and open source stuff
● Government Censorship is suss
● Privacy concerns
○ Geolocation and data collection
○ Anonymity through third party serves
○ Instant access to vast amounts of data
collected and reproduced infinitely
■ Enables individuals and institutions
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Commercial and government curation of
information
■ Targeting Advertising
○ Intellectual property
■ Piracy
■ Digital Millennium Copyright Act (DMCA)
● Criminalizes making software or any
tech that allows people to
circumvent measures that control
access to copyright material
● Criminalizes unpermitted
circumventing an access control,
infringement or otherwise (Hacking)
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Criminalizes Internet Piracy as
new crime
■ Widespread access to free, open-source
software making libraries programs and
code easy to access.
Computing influences and is affected by culture
economics and society
○ Differs from society to society and from
socioeconomic group to socioeconomic group
○ Wireless and networking has had a huge
worldwide impact
○ Digital divide
■ Differing access to computing and the
internet based on socio economics or
geography
○ Networks and infrastructure supported by
government and companies
Accessing information
○ Online databases store both secondary and
primary sources
○ Advanced search, boolean logic, and keywords
can refine searches and limit them
○ Plagiarism is a serious events, but accurately
acknowledging sources can prevent
○ Evaluating sources
■ Review Author, publisher, site owner,
and/or sponsor to evaluate credibility
■ Information is relevant when it supports
an appropriate claim or the purpose of
the investigation
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Figuring out Algorithms
○ DISPLAY (​"What is your name?"​)
name ← INPUT ()
DISPLAY (​"Hello"​)
DISPLAY (name)
What is displayed as a result if the user inputs “Karel” to the program?
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PROCEDURE ​Mystery​ (number)
{
DISPLAY (​"WOW"​)
REPEAT number TIMES
{
DISPLAY (​"!"​)
}
}​What is the result of calling the ​Mystery​ procedure with an input of 3?
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Program 1 and 2 below are intended to calculate the average of the integers in a list,
number_list​.
■ Program 1
● sum ← ​0
FOR EACH number ​in​ number_list
{
sum ← sum + number
}
DISPLAY (sum / LENGTH (number_list))
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Program 2
● counter ← ​1
sum ← ​0
FOR EACH number ​in​ number_list
{
sum ← sum + number
counter ← counter + ​1
}
DISPLAY (sum / counter)
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Given the following algorithms, which of the algorithms require ​both​ selection and
iteration?
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Iteration,
I.​ Given a basket of produce, get the number of pieces of produce in the
basket.
II.​ Given a basket of produce, remove all produce of type vegetable.
III.​ Given a basket of produce remove all produce of type fruit.
IV.​ Given an apple and a carrot, return the one that has the type of
vegetable.
Selection, and Sequencing