Program Function and Purpose (Unit 1.2)

Program Function and Purpose Video #1 Notes

Computing Innovations: Applications(apps on a phone or computer), Physical Devices(phone, computer, wearables), Systems(online shopping, emails, cloud)
Why does the computing innovation exist?, What does it solve?, What can we do now with the innovation?
Social Media: To let people connect with others online, a way to save your memories and view other people’s lives
E-commerce: To let people save time and money by shopping from home
Digital Assistant Device: To help people use devices easily and more conveniently while multitasking
The purpose of computing innovations is to solve a problem or pursue interests through creativity
Takeaway: Describe the purpose of a computing innovation

Computer programs can receive input: touch, audio, visual, text
Programs receive input because programs are written in even driven environments: The events are triggered by certain actions
Input usually affects the output of the program
Actions trigger the event: initiated by user or another program or device
Program jumps to the code segment that is triggered by the action; code segments don’t need to be executed in order
Takeaway: Identify inputs and outputs of a program

Program: collection of statements; a single is a command, multiple is a code segment, they are executed according to the rules of the programming language
A program is called software
Description of the code segment should be straightforward and how it does what it does
Takeaway: Explain how a program or code segment functions