This document outlines the key concepts and objectives covered in an introductory chapter on the C programming language, including: understanding the structure of a C program; writing a first C program; introducing preprocessor commands; creating identifiers; listing and using basic data types like integers and floating-point numbers; creating and using variables and constants; and understanding basic input and output statements. It provides examples of simple C programs and discusses topics like data types, variables, constants, and comments.
في هذا العرض، طرح لموضوع الأشكال، والجداول أو الإطارات، وخارطة المعلومات والتي تعرف باسم استراتيجيات التعلم الفراغي، كمنشطات عقلية قد تغني عن دراسة المادة المكتوبة. كما سأتطرق إلى موضوع استراتيجية التشبيهات وأخيراً الأهداف التعليمية.
شاهد العرض بالفيديو مع الشرح التفصيلي:
https://youtu.be/RDU-KUPBQoA
في هذا العرض، طرح لموضوع الأشكال، والجداول أو الإطارات، وخارطة المعلومات والتي تعرف باسم استراتيجيات التعلم الفراغي، كمنشطات عقلية قد تغني عن دراسة المادة المكتوبة. كما سأتطرق إلى موضوع استراتيجية التشبيهات وأخيراً الأهداف التعليمية.
شاهد العرض بالفيديو مع الشرح التفصيلي:
https://youtu.be/RDU-KUPBQoA
C is a structured programming language. It is considered a high-level language because it allows the programmer to concentrate on the problem at hand and not worry about the machine that the program will be using. That is another reason why it is used by software developers whose applications have.
Lecture 3.2.4 C pointer to Structure.pptxravi2692kumar
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C is a structured programming language. It is considered a high-level language because it allows the programmer to concentrate on the problem at hand and not worry about the machine that the program will be using. That is another reason why it is used by software developers whose applications have.
Lecture 3.2.4 C pointer to Structure.pptxravi2692kumar
Enabling immediate and 24/7 communication
Automating communication
Overcoming geographical barriers
Enabling more effective and real-time collaboration
Increasing transparency
Decentralizing decision making
Agar, J., 2003. Constant Touch: A Global History of the Mobile Phone. Cambridge: Icon Books.
Barry, W., 1999. Networks in the Global Village. Boulder Colo: Westview Press.
Caron, A, & Caronia, L., 2007. Moving cultures: mobile communication in everyday life. Montreal: McGill-Queen’s University Press.
Castells, M., 1996. The Information Age: Economy, Society and Culture, Volume 1.The Rise of the Network Society. Oxford: Blackwell.
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Many of the business processes today involve communications like messaging/chatbots, email marketing, and social media engagement to reach out to the target customers. The growth and widespread adoption of social media platforms, video conferencing tools and emailing platforms have made virtual communication a new normal in the COVID reign
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Chap 02-1
1. Computer Science: A Structured Programming Approach Using C 1
Objectives
❏ To understand the structure of a C-language program.
❏ To write your first C program.
❏ To introduce the include preprocessor command.
❏ To be able to create good identifiers for objects in a program.
❏ To be able to list, describe, and use the C basic data types.
❏ To be able to create and use variables and constants.
❏ To understand input and output concepts.
❏ To be able to use simple input and output statements.
Chapter 2
Introduction to the C Language
2. Computer Science: A Structured Programming Approach Using C 2
2-1 Background
C is a structured programming language. It is
considered a high-level language because it allows the
programmer to concentrate on the problem at hand
and not worry about the machine that the program
will be using. That is another reason why it is used by
software developers whose applications have to run on
many different hardware platforms.
3. Computer Science: A Structured Programming Approach Using C 3
2-2 C Programs
It's time to write your first C program.
Structure of a C Program
Your First C Program
Comments
The Greeting Program
Topics discussed in this section:
4. Computer Science: A Structured Programming Approach Using C 4
FIGURE 2-2 Structure of a C Program
5. Computer Science: A Structured Programming Approach Using C 5
FIGURE 2-3 The Greeting Program
6. Computer Science: A Structured Programming Approach Using C 6
PROGRAM 2-1 The Greeting Program
7. Computer Science: A Structured Programming Approach Using C 7
FIGURE 2-4 Examples of Block Comments
8. Computer Science: A Structured Programming Approach Using C 8
FIGURE 2-5 Examples of Line Comments
9. Computer Science: A Structured Programming Approach Using C 9
FIGURE 2-6 Nested Block Comments Are Invalid
10. Computer Science: A Structured Programming Approach Using C 10
2-3 Identifiers
One feature present in all computer languages is the
identifier. Identifiers allow us to name data and other
objects in the program. Each identified object in the
computer is stored at a unique address.
11. Computer Science: A Structured Programming Approach Using C 11
Table 2-1 Rules for Identifiers
12. Computer Science: A Structured Programming Approach Using C 12
An identifier must start with a letter or underscore:
it may not have a space or a hyphen.
Note
13. Computer Science: A Structured Programming Approach Using C 13
C is a case-sensitive language.
Note
14. Computer Science: A Structured Programming Approach Using C 14
Table 2-2 Examples of Valid and Invalid Names
15. Computer Science: A Structured Programming Approach Using C 15
2-4 Types
A type defines a set of values and a set of operations
that can be applied on those values.
Void Type
Integral Type
Floating-Point Types
Topics discussed in this section:
16. Computer Science: A Structured Programming Approach Using C 16
FIGURE 2-7 Data Types
17. Computer Science: A Structured Programming Approach Using C 17
FIGURE 2-8 Character Types
18. Computer Science: A Structured Programming Approach Using C 18
FIGURE 2-9 Integer Types
19. Computer Science: A Structured Programming Approach Using C 19
sizeof (short) ≤ sizeof (int) ≤ sizeof (long) ≤ sizeof (long long)
Note
20. Computer Science: A Structured Programming Approach Using C 20
Table 2-3 Typical Integer Sizes and Values for Signed Integers
21. Computer Science: A Structured Programming Approach Using C 21
FIGURE 2-10 Floating-point Types
22. Computer Science: A Structured Programming Approach Using C 22
sizeof (float) ≤ sizeof (double) ≤ sizeof (long double)
Note
23. Computer Science: A Structured Programming Approach Using C 23
Table 2-4 Type Summary
24. Computer Science: A Structured Programming Approach Using C 24
2-5 Variables
Variables are named memory locations that have a type,
such as integer or character, which is inherited from
their type. The type determines the values that a variable
may contain and the operations that may be used with
its values.
Variable Declaration
Variable Initialization
Topics discussed in this section:
25. Computer Science: A Structured Programming Approach Using C 25
FIGURE 2-11 Variables
26. Computer Science: A Structured Programming Approach Using C 26
Table 2-5 Examples of Variable Declarations and Definitions
27. Computer Science: A Structured Programming Approach Using C 27
FIGURE 2-12 Variable Initialization
‘B’
28. Computer Science: A Structured Programming Approach Using C 28
When a variable is defined, it is not initialized.
We must initialize any variable requiring
prescribed data when the function starts.
Note
29. Computer Science: A Structured Programming Approach Using C 29
PROGRAM 2-2 Print Sum of Three Numbers
30. Computer Science: A Structured Programming Approach Using C 30
PROGRAM 2-2 Print Sum of Three Numbers (continued)
31. Computer Science: A Structured Programming Approach Using C 31
PROGRAM 2-2 Print Sum of Three Numbers (continued)
32. Computer Science: A Structured Programming Approach Using C 32
2-6 Constants
Constants are data values that cannot be changed
during the execution of a program. Like variables,
constants have a type. In this section, we discuss
Boolean, character, integer, real, complex, and string
constants.
Constant Representation
Coding Constants
Topics discussed in this section:
33. Computer Science: A Structured Programming Approach Using C 33
A character constant is enclosed in single quotes.
Note
34. Computer Science: A Structured Programming Approach Using C 34
Table 2-6 Symbolic Names for Control Characters
35. Computer Science: A Structured Programming Approach Using C 35
Table 2-7 Examples of Integer Constants
36. Computer Science: A Structured Programming Approach Using C 36
Table 2-8 Examples of Real Constants
37. Computer Science: A Structured Programming Approach Using C 37
FIGURE 2-13 Some Strings
38. Computer Science: A Structured Programming Approach Using C 38
FIGURE 2-14 Null Characters and Null Strings
39. Computer Science: A Structured Programming Approach Using C 39
Use single quotes for character constants.
Use double quotes for string constants.
Note
40. Computer Science: A Structured Programming Approach Using C 40
PROGRAM 2-3 Memory Constants
41. Computer Science: A Structured Programming Approach Using C 41
PROGRAM 2-3 Memory Constants (continued)