CS101 Midterm Short Handouts Lectures 1-7

Lecture 1 – Introduction to Computer Science

What is Computer Science?

Computer science (CS) is the study of computers and algorithmic processes, including their principles, their hardware and software designs, their applications, and their impact on society. Computer Science is the discipline that seeks to build a scientific foundation for such topics as:

•  Hardware
•  Software
•  Programming
•  Networks
•  Graphics
•  Robots
•  Database
•  Security
•  Algorithmic Solutions
•  Information Processing

Computer Science Applications:

•  Telecom
•  Banks
•  Hospitals
•  Software Development
•  Service Industry
•  Pak Army
•  Freelancing
•  and many more

Local and International Job Market:

•  Artificial Intelligence and Machine Learning
•  Data Science
•  Virtual Reality
•  Back-End Developer
•  Front-End Developer
•  UI Designer
•  Full-Stack Engineer
•  IT Manager

Are you not a student of Computer Science?

Breadth First Learning: This course will give basic introduction to almost all courses of Computer Science. Such strategy of learning is known as Breadth First Learning. The other strategy is called Depth First Learning in which one particular course is first covered in details and then next course is covered. The Breadth First Learning helps students to first know what they will be learning in the whole degree program.

We will cover:

1. Abstract view of all major courses in CS
2. Understanding what will be studied in CS

Q3. Why each course is important ?

4. Clarifying the bigger Picture

Introduction to the topics will be covered in this course:

1. Search Engine Usage Techniques
2. History of Computing
3. Data Storage
4. Data Manipulation
5. Operating System
6. Networking and the Interne
7. Algorithms
8. Programming Languages
9. Software Engineering
10. Data Abstraction
11. Database Systems
12. Artificial Intelligence
13. CS impact on society
14. Content Filtering, Spam, International law
15. Word Processing
16. Presentations Development
17. Spreadsheet
18. Database MS Access
19. Web Page Development

Search Engines:

Search Engine like Google index web pages and helps you to retrieve the relevant web pages based on your queries. Starting from today, in next few modules, we will focus on techniques and short-cuts to retrieve most relevant information from Google.

Q1. Searching Tricks :

1. Weather Searching
2. Performing Calculations
3. Currency Conversion

Q2. Search Operators

1. Search on Social Media( )
2. Search for a price(pkr)
3. Searching Hash tags(#)
4. Exclude words from Query(-)

e. Exact Match(“ ”) f. Wild Card based Searching(*) g. Boolean Operators(AND, OR)

k. File type(“CS101 Handouts filetype: pdf”) l. Define Operator(“Define: Computer”) m. Tilt(Rotate the Google screen to 360 degree)

Q3. Advanced Search Operators

1. Intitle
2. Allintitle
3. inurl and allinurl
4. Intext and allintext

e. Proximity Search(Education AROUND(3) "virtual university")

What we should not search on Internet:

There are three main reasons:

1. Google Adds
2. Security Agencies
3. Cyber-security attacks

Roots of Computing:

1. Abacus
2. Gears
3. Punch Cards
4. ENIAC (Electronic Numerical Integrator And Calculator) developed by John Mauchly and J. Presper Eckert at the Moore School of Electrical Engineering, University of Pennsylvani.

Factsheet of ENIAC:

 Occupied 1800 square feet