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AP Computer Science Principles Notes + Summary
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  • Course
  • AP Computer Science Principles
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  • Junior / 11th Grade

This document is a summary of the AP course - Computer Science Principles. This document is a summary of my notes and important vocab that is needed for AP CSP. This document allowed me and my friends to get a 5 on the AP CSP exam as it has all essential vocab and information tested in the APCSP e...

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  • October 21, 2024
  • 14
  • 2023/2024
  • Summary

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  • Junior / 11th grade
  • AP Computer Science Principles
  • 5

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abrahamleonardsutedja

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APCSP Notes

, Unit 1 :
Digital Information
(0cr1)
-
Computers bit binary
-




represent data as ,
in number system

8 bits 1
byte
-

:




Overflow number stored variable
bigger
being what
-


in then the
:
is computer can



handle

↳ Could result in truncation high to I numbers
capping all numbers or




Wrap number around (higher number + back to 1)



Floating Point Representation similar to
scientific butu f
binary Used
by
-
:
notation computer
, .
to store date
↳ 1727 1 .
75729 1 .
572 "..
.




,




Round
off Error
error/out off bits
-


:
errors in number
representation be computer rounding
c ↑ bits used = A
precision


ASCII
Encoding binary
-



number chart letter.
conversion
for each
:




↳ "A" =
1000001 (65) ,
"a" :
97
4) But it's limited to English+
, just capable of just 128 Sits




chesadainl)
Unicode : universal character set that assigns to each character
-




number



binary.
↳
encoded
by UTF-8 into




-Analog = continuous stream of varying data , infinitely detailed

↳
Computers only store
digital data
(finite data in
binary
"Need to convert
analy
to
digital when store in computer

1)
Sampling : convert infinite stream -
finite sequence

2) Quantisation :
values in
sequence are
approximated
3) Encoded convert to
binary for
:


storage
3 Later
computer reconstructs these digital data into to file
,
analy display original

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