1. Microsoft Imagine
All KU students currently enrolled in a CS class are eligible to receive Microsoft software, including
Operating Systems
development tools
some application software
Does not include MS Office
Find more information from

2. GA office hours Graduate Assistants in GA Office (OM 255)
Fall 2017 Hours
Mon-Thur 9:00am – 6:00pm
Fri 9:00am – 3:00pm
Feel free to come and ask questions about 135 assignments

3. Putty You can download Putty (on Windows) from
Download it to desktop or any folder you like
Standalone program, no need to install
Double click to run
To configure Putty (?)

4. Computer Hardware

5. Computer hardware CPU (Central Processing Unit)
Main memory: fast access, temporary storage, smaller capacity
RAM (Random Access Memory)
Secondary memory: slow access, permanent storage, larger capacity
Hard disc, flash drive, CD

6. Random Access Memory Know difference between Random access
content of a memory location
address of a memory location
Random access
Given the address of a memory location
Can access the location in one clock cycle
Regardless of the location accessed in previous cycle
Random access vs. Sequential access
DVD vs. Video tape

7. Input/Output (I/0) devices
Input devices
Keyboard, mouse, scanner, video cam, microphone
Output devices
Monitor, speaker, printer

8. Computer Programs A set of instructions (like a recipe)
Two kinds of programming languages
Low-level language or Machine language
High-level language (more human readable)
C++, Java, etc.

9. Compiler A computer program Example Process
translates a program in high-level language into a program in machine language
Example Process
g++
hello.cpp
a.out

10. Common elements of C++ language
Keywords
Reserved words (~two dozen)
Programmer-Defined Identifiers
Variable, function
Operators
Arithmetic operators, logical operators

11. Common elements of C++ language
Syntax
Grammar, rules that must be followed
Learn to be detail-oriented
Comments or Documentation
Must follow the department’s standard

12. A sample program
1 // This program calculates the user's pay. 2 #include <iostream> 3 using namespace std; int main() 6 { double hours, rate, pay; // Get the number of hours worked cout << "How many hours did you work? "; cin >> hours; // Get the hourly pay rate cout << "How much do you get paid per hour? "; cin >> rate; // Calculate the pay pay = hours * rate; // Display the pay cout << "You have earned $" << pay << endl; return 0; 23 }

13. Key Words
1 // This program calculates the user's pay. 2 #include <iostream> 3 using namespace std; int main() 6 { double hours, rate, pay; // Get the number of hours worked cout << "How many hours did you work? "; cin >> hours; // Get the hourly pay rate cout << "How much do you get paid per hour? "; cin >> rate; // Calculate the pay pay = hours * rate; // Display the pay cout << "You have earned $" << pay << endl; return 0; 23 }
Refer to Page 60

14. Programmer-Defined dentifiers
1 // This program calculates the user's pay. 2 #include <iostream> 3 using namespace std; int main() 6 { double hours, rate, pay; // Get the number of hours worked cout << "How many hours did you work? "; cin >> hours; // Get the hourly pay rate cout << "How much do you get paid per hour? "; cin >> rate; // Calculate the pay pay = hours * rate; // Display the pay cout << "You have earned $" << pay << endl; return 0; 23 }

15. Operators
1 // This program calculates the user's pay. 2 #include <iostream> 3 using namespace std; int main() 6 { double hours, rate, pay; // Get the number of hours worked cout << "How many hours did you work? "; cin >> hours; // Get the hourly pay rate cout << "How much do you get paid per hour? "; cin >> rate; // Calculate the pay pay = hours * rate; // Display the pay cout << "You have earned $" << pay << endl; return 0; 23 }

16. Punctuation
1 // This program calculates the user's pay. 2 #include <iostream> 3 using namespace std; int main() 6 { double hours, rate, pay; // Get the number of hours worked cout << "How many hours did you work? "; cin >> hours; // Get the hourly pay rate cout << "How much do you get paid per hour? "; cin >> rate; // Calculate the pay pay = hours * rate; // Display the pay cout << "You have earned $" << pay << endl; return 0; 23 }

17. Summary Computer hardware Programming language
CPU, RAM, Secondary memory, I/O
Programming language
Machine language, high-level language, compiler
Basic components of a C++ program
Keywords, programmer-defined ID, punctuation, operators, syntax, comments