Why Programming?

• In majority of cases we do programming to get paid.
• Organizations might need
  • Some applications
  • Automate some of the manual work
• Building apps/games etc..

What happens when you run applications

How do i build applications

• Speak/write to Processor directly
  • Processor understands 0’s or 1’s
• Speak/Write the language that is easy for humans to understand
  • Assembly languages
  • High Level Languages
• With High Level Languages, we need some one to transform instructions
  • Compiler
  • Interpreter
• These High Level Languages are also referred as Programming Languages, Some of Popular Programming languages are
  • Bash: It is automating command line tasks on linux/unix
  • C: As a general purpose language
  • C++
  • Java
  • C#
  • Python
  • Ruby
  • Objective-c
  • Swift
  • JavaScript

Getting to Know Your Computer

• Computer is stupid.
  • Computer follows instructions, if your instructions are good enough, you can even play chess
• Computers seem to be intelligent depending on instructions which we pass (applications).

How Programs work

• Programs work as shown below
• To store results in ram we generally use some thing as variables
• To tell how much of memory should i reserve on RAM we use datatypes.

How to be effective in Writing Programs

1. Don’t directly write programs
2. Lets introduce a character ‘Snake’ or ‘Kid’, to which we will communicate our intentions
   • ‘Snake’ or ‘Kid’ knows how to reserve memory in RAM
   • ‘Snake’ or ‘Kid’ knows how to add, subtract, divide, multiplicate
3. We would try to speak with ‘Snake’ or ‘Kid’ to get our logics implemented