AP CSA: Selected Recursive Questions

Pseudocode Questions from Past Papers

AP CSA: Recursion

AP CSA: Binary Search and Merge Sort (Recursion)

An introduction to Java

Basic Pseudocode Questions (1)

Basic Pseudocode Questions (2)

Basic Pseudocode Questions (3)

Basic Pseudocode Questions (4)

40 complete and executable pseudocodes

40 complete and executable Java codes matching the pseudocodes

AP CSA: inheritance in Java

2024-2025上学期期中考试详解

Unit 1: Information representation

Unit 2: Communication

Unit 3: Hardware: Computers and Their Components

Unit 4: Processor Fundamentals

Unit 5: System Software

Unit 6: Security, Privacy, and Data Integrity

Unit 7:  Ethics and Ownership 

Unit 8: Database

Unit 9: Algorithm Design and Problem-solving

Unit 10: Data Types and Structures

Unit 11: Programming

Unit 12: Software Development

The normalisation process

Vieta's formulas|韦达定理

MySQL

Hyperbolic Functions

Eigenvalues and Eigenvectors

Java排序算法

Matrix

三阶行列式的展开计算

用伴随矩阵求三阶矩阵的逆矩阵

Unit 5 Writing Classes

AP CSA 视频讲解

Interrupts

9e Pseudocode Questions from Past apers  伪代码往年真题

CSA official MCQs

CSAWESOME SOLUTIONS

Cracking CSA: Array and Arraylist

Different Types of ArrayList

How does computer hardware work

Tests for CIE 9618 

Java趣味编程

2025 CSA  Warm-up 

Essential java codes

AP Computer Science A Key Points

虚数不虚

空间解析几何基本问题探究

9618 Textbook Vocabulary (1/2)

CIE 9618 Learning Strategy

Basic Computer Concepts

CIE 9709 Mechanics 视频讲解

CIE 9709 P3视频讲解

CIE 9709 Statistics1 视频讲解

CIE 9709 P1视频讲解

Taylor Series

MAT Resources

USACO Resources

数字化工具在日常教学中的应用

Casting and Ranges of Variables in Java

What is e in mathematics?

9709 P3 : Differentiation

9709: Partial Fractions

CIE 9709 P1/P3/M/S1 真题集

A brief introduction to CIE 9618 (*_*)

0.Learning the principles of how computers work

1a  Binary System in Computer

1b Converting from Decimal to Binary

1c Converting between Binary, Octal, and Hexadecimal

1d   Binary Subtraction

1e   ASCII

1f   Binary-Coded Decimal (BCD)

1g   Binary fractions

2a  Differences between a diode, transistor, MOSFET, and IGBT

2z  Building Logic Gates with Transistors

3a  Logic gates and logic circuits

3b DRAM  and SRAM

4a Half Adder and Full Adder

4b Flip-Flop Circuits

4c Registers

4d The accumulator (ACC) 

4e CPU

4f The fetch decode execute cycle 

7a Introduction to Assembly Language

7b Factorial in ASM, Pseudocode and Python

7c Common Assembly Instructions

8a Introduction to Databases

8b How to create a database

8c How to modify a database

9a Introduction to Pseudocode

9b Learning Pseudocodes Step by Step

9c  Pseudocode Complete Guide (*_*)

9d  Learn Pseudocodes by Heart

9f Introduction to Flowchart

9g  An introduction to  Java in CIE 9618

9i  CIE 9618 真题详解

12a  Introduction to Algorithm

IGCSE 0580

A-Level 9709

A-Level 9231

MAT-STEP

CIE 9618

AP CSA

USACO

AP Statistics

Ap calculus

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IGCSE数学高频术语

Learning AP Statistics with TI-Nspire (***)