Basics of Computing Part 2

Owned by Mike Deskis
Last updated: May 03, 2024 by Ioana Kocurova
2 min read

The second part of the lesson about numbers and how they are stored in computers. Data structures are discussed at the end of the lesson.

Learning Objectives

The section discusses programming fundamentals, coverage of various topics such as binary and decimal numbers, memory allocation, data structures, and the advantages of using specific structures in real-time programs. It emphasizes the importance of choosing the right data structures to optimize performance and memory usage.

 

Core Topics and Takeaways

  • Binary numbers

  • Words

  • Integers

  • Hexadecimal numbers

  • Alphanumeric representation

  • Data structures

Video Highlights

Topic

Key Concepts

Video Location

Topic

Key Concepts

Video Location

This section discusses the differences between single precision and double precision floating point numbers.

  • Single precision floating point numbers have one digit in the exponent, while double precision floating point numbers have two.

  • The choice of representation determines the range and precision of the numbers.

  • Computers usually store floating point numbers as binary digits, but they can also be represented as decimal digits.

00:01

This section discusses the importance of programming fundamentals and coverage in computer science.

  • Programmers input numbers into computers for various purposes.

  • It is necessary to give processors a design and controller.

  • Consider the risks of overflow and the need to test for overflows.

  • Different number representations, such as decimal and binary, are used in programming.

02:18

This section discusses various topics related to programming fundamentals and coverage.

  • It mentions the importance of testing and debugging.

  • It talks about floating-point numbers and their representation in binary.

  • It introduces different coding systems, such as the American Standard Code for Information Interchange (ASCII) and hexadecimal.

  • It discusses the use of spaces and punctuation marks in coding.

  • It briefly mentions the use of 16-bit numbers and the concept of memory.

04:39

Learning Highlights

The precision in floating-point numbers, covering topics like mantissa digits, exponent signs, and negative/positive representation. The video introduces binary arithmetic, emphasizing the quick overflow of binary additions. The significance of word size in processors is highlighted. It touches on integer limits, discussing MININT and MAXINT, and mentions hexadecimal numbers and character encoding. The transition to data structures is introduced, such as strings, records, arrays, and lists. The importance of selecting the right data structure for efficient searches and changes is emphasized, considering trade-offs between speed and memory usage.

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