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Stanford University via edX

Computer Science 101

4.4446 ratings at edX

Overview

Introduction to Computer Science for a zero-prior-experience audience. Play with little phrases of code to understand what computers are all about.

What you'll learn

  • The nature of computers and code, what they can and cannot do
  • How computer hardware works: chips, cpu, memory, disk
  • Necessary jargon: bits, bytes, megabytes, gigabytes
  • How software works: what is a program, what is "running"
  • How digital images work
  • Computer code: loops and logic
  • Big ideas: abstraction, logic, bugs
  • How structured data works
  • How the internet works: ip address, routing, ethernet, wi-fi
  • Computer security: viruses, trojans, and passwords, oh my!
  • Analog vs. digital
  • Digital media, images, sounds, video, compression

Skills you'll practise

Computer ScienceExperimentationWeb Browsers

Advantages and disadvantages

Advantages

  • University courses you can audit for free, with lectures, readings and practice quizzes.
  • A verified certificate from the university if you pay for it.
  • The actual Stanford lectures (CS229, CS224N, CS231N…): the deepest free material on AI anywhere.
  • Taught by Stanford University, one of the strongest names in its field.
  • 262,704 learners have taken it, so help and notes are easy to find.
  • Self-paced: start any time.

Disadvantages

  • Graded assignments and the certificate need the paid track.
  • Audit access can expire a few weeks after the course ends.
  • Graduate level: needs linear algebra, probability and programming first.
  • Learning is free, but the certificate costs money.
  • Some parts (graded work, certificate) are paid.

Some points apply to every course of this kind; see how we rank.

Free to audit

  • Free: Choose "Audit this course" when you enrol: lectures, readings and practice are free.
  • Paid: Graded assignments and the verified certificate (Certificate $249). Audit access may end after the course closes.

Before you start

Zero computer experience is assumed beyond a basic ability to use a web browser.

Taught by

  • Nick ParlanteSenior Lecturer, Computer Science

Stanford University is in Tier 1: world-leading universities and India's top institutes of our institution ranking (97/100).

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