View khushi12.github.io on GitHub

Welcome to Khushi’s Github Pages

Home Code CB Notes Create Task Quiz Corrections CB Faculty Notes Quiz Corrections2 Quiz Corrections3

CB University Faculty Lectures Notes (Optional- Compeleted for Reference)

Dat_1 University Faculty Lecture

Data Representation

  • Positional Numbering System, with the power and base
  • Each bits represents a different number of base of 2.
  • Powers of 2 have all answers with even numbers, and where odd part of a binary number then the least significant bit is set to 1. -> If binary number ends in zero, the decimal value HAS TO BE even

image

  • In a 8-bit binary numbers, there can be these many unique values:
    • 1 bit = 2 values
    • 2 bits = 4 values
    • 3 bits = 8 values

    Ans: 2 to the power of the number of bits is the number of unique values

image

  • Everything in computing is BITS!

Steganography:

  • we hide a message within a picture, where the number of bits must be changed
  • 8-bit RGB image = more than 16 million colors
  • With less bits there is more pixelated darker colors
  • It is easy to manipulate pictures

IOC-1 University Faculty Lecture

  • Cloud computing makes computing more accessible than parallel/distributed computing
  • Computer Science is the study of automated algorithmic in scale
  • CS involves all aspects of courses
  • Digital Divide is unintentional, however important to address
  • Smartphone are a super-computers
  • IBM Blue gene (fast computers) and a smartphone(as powerful and sometimes more powerful than IBM Blue genes)
  • Smartphones don’t give everything we desire in a computer, such as how the pandemic has changed what caused more people to want computers and issues with E-rate.
  • During the pandemic, the realization that access to internet is a human right
  • Facial Recognition can be helpful though does violate basic human rights, such as consent of using picture as well as privacy invasion
  • Algorithmic Justice League(art + research on AI)
  • Machine Learning and Deep Learning helps the ecosystem and comes from huge parts of data

image

  • Deep Learning is bad for the climate because of carbon emission and this has ethical concerns as well
  • Depending on how use your internet, most companies have control over for social media companies to be removed