cat scratch

CAT scratch

Hello , Everybody

catazine

Introduction

We Are Not Nerds

what client thinks i dowhat my mom thinks i do

what i really dowhat society thinks i do

what my friends thinks i do

what i thinks i do

احنا منعرفش مني اللى زار بروفيلك !!!

The Ugly Truth

self learning skill

63% of the people around you have no experiacne

17%

20%63%

Zero Exp. Little Exp. Good Exp.

VIDEO

Computers are all around us ..

Computers Are Not Just PCs

Computers vs Humans

Computer Science

NOT JUST PROGRAMMING

Binary

ASCII

let’s make our first word

ASCII Table

Algorithms

We want to find the word CAT

Dictionary

time

to so

lve

Size of the problem

n

time

to so

lve

Size of the problem

n n/2

time

to so

lve

Size of the problem

n n/2

log n

An Algoritm

1. stand up and think of the number 1

2. pair off with someone standing, add your numbers together, and adopt the sum as your new number

3. one of you should sit down; the other should go back to step 2

On Foot Bicycle Bus Taxi

Cost none low medium high

Time high medium low very low

10 MIN BREAK

We Hope You Come Back :D

What Is Programming ?

What Is Programming !

How We Can Communicate !

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What Is Programming !

How We Can Communicate !

Arabic, English ,or any

other language

010100101010101100101001001

What Is Programming !

How We Can Communicate !

Arabic, English ,or any

other language

010100101010101100101001001

?

What Is Programming !

How We Can Communicate !

010100101010101100101001001

Arabic, English ,or any

other language

Programming Language

What Is Programming !

How We Can Communicate !

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Arabic, English ,or any

other language

Programming Language

any Language

What Is Programming !

Programming is not about the Syntax (syntax attempts

to describe languages in terms of rules) .

Programming is how to think and find away to solve a problem , It involves activities such as analysis, understanding, and generically solving such problems resulting in an ”Algorithm” .

Why programming

Who can relate to this ?

Not very big or complex program but useful

Who can relate to this ?

Not very big or complex program but also useful

Computers are stupid

You must think like him

Pseudo Code

Code Sandwich

Who is hungry !?

Scratch

Scratch is just a puzzle game

you just add puzzle parts together .

Statements

Want to say (print) something ! just use “say” statement .

add your text here !(paramater)

Statements

“Wait” statement is used to pause your program.

You can also play sounds, just use “play sound” statement .

Statements

Boolean Expressions

Boolean Expressions used to ask a simple “ yes or no ” question .

Boolean Expressions

Boolean Expressions used to ask a simple “ yes or no ” question .

Boolean Expressions used to ask a simple “ yes or no ” question .

Boolean Expressions

Conditions ( If )

“if ” used to specify a block of code to be executed, if a specified condition is True .

condition “boolean”

code to be executedif the condition is True

Conditions ( If else )

“else” used to specify a block of code to be executed, if the same condition is False .

condition “boolean”

code to be executedif the condition is True

code to be executedif the condition is False

Conditions ( Nested If )

Nested if is just an if inside another if

( first if )

code to be executedif the first condition is True

code to be executedif the first condition is False

( second if ) { code to be executedif the second condition is True

code to be executedif the second condition is False

loops

loops are used to run the same code over and over

the code you want to run again and again

number of loops

loops (infinite loop)

forever loop (infinite loop) used to run the same code over and over forever

the code you want to run again and again

Game

This Was CS50

https://cs50.harvard.edu

Important links

www.edx.org

www.coursera.org

www.udemy.com

www.ocw.mit.edu

www.edraak.org

www.tutsplus.com

www.lynda.com

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Introduction To Computer ScienceUsing Python

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CAT Library

Thank You

THE END