CS001Introduction to Programming

Day 1

CS001Introduction to Programming

Day 1

Sujana Jyothi(sujana@cs.nuim.ie)

2

What will you learn?

• Learn to understand programs• Use the Scratch interactive

development environment (IDE) - Labs

• Learn to solve problems• Understand what we mean by

algorithms

3

Resources

• Resources

– Use the material from NUIM Moodle.

• Save your work

– on your flash drive– or email it to yourself

4

Course StructureLectures/Labs• Monday

11:00-12:00: lecture• Tuesday

9:00-10:00: Lecture• Lab

Friday 11:00 – 13:00

Assignments• Marks out of 2 are given for each of two laboratory

sessions• Two 10 minute quizzes (to be taken during lectures) – 3

marks each.• Total 10 marks for “Introduction to Programming” class.

Attendance• record will be kept for all sessions for lectures and labs

Assessment• will be based on lab work, quizzes & attendance

Computer Programming

Easy to UNDERSTANDINTERESTING to know

&Enjoyable

Programming is simply telling a computer to do a task

Sequence of steps to be followed

Pizza Dough Recipe (Requirements)1. Gather Ingredients2. Combine sugar (1tbs), salt (1tbs),

olive oil (1tbs), flour (1c) in mixing bowl

3. Turn on mixer4. Add 1/4 cup of flour5. If dough comes off the sides go to

step 6, otherwise go back to step 4

6. Knead 15 minutes7. Let rest for at least 45 minutes in

warm area

1 dough ball

N-Pizza Dough Program• Gather Ingredients• Combine sugar (N tbs), salt (N

tbs), olive oil (N tbs), flour (N c) in mixing bowl

• Turn on mixer• Add N/4 cup of flour• If dough comes off the sides go

to step 6, otherwise go back to step 4

• Knead 15 minutes• Let rest for at least 45 minutes in

warm area

N dough balls

N-Pizza Dough Program• Gather Ingredients• Combine sugar (N tbs), salt (N

tbs), olive oil (N tbs), flour (N c) in mixing bowl

• Turn on mixer• Add N/4 cup of flour• If dough comes off the sides go

to step 6, otherwise go back to step 4

• Knead 15 minutes• Let rest for at least 45 minutes in

warm area

Sequence of Statements

N dough balls

N-Pizza Dough Program• Gather Ingredients• Combine sugar (N tbs), salt (N

tbs), olive oil (N tbs), flour (N c) in mixing bowl

• Turn on mixer• Add N/4 cup of flour• If dough comes off the sides go

to step 6, otherwise go back to step 4

• Knead 15 minutes• Let rest for at least 45 minutes in

warm area

N dough balls

Variable

N-Pizza Dough - Program• Gather Ingredients• Combine sugar (N tbs), salt (N

tbs), olive oil (N tbs), flour (N c) in mixing bowl

• Turn on mixer• Add N/4 cup of flour• If dough comes off the sides go

to step 6, otherwise go back to step 4

• Knead 15 minutes• Let rest for at least 45 minutes in

warm area

Conditional

N-Pizza Dough - Program• Gather Ingredients• Combine sugar (N tbs), salt (N

tbs), olive oil (N tbs), flour (N c) in mixing bowl

• Turn on mixer• Add N/4 cup of flour• If dough comes off the sides go

to step 6, otherwise go back to step 4

• Knead 15 minutes• Let rest for at least 45 minutes in

warm area

SubroutinesMini-programs

N dough balls

Tomorrow's Class

• More on Programming• More on Algorithms• Friday – lab using Scratch