What is bitcoin?

A Bitcoin is a unit of currency, launched in 2009, that only exists online and isn't controlled by any kind of central authority, like US Federal Reserve.

You can send Bitcoins to anyone who has a web connection (or hand some one your hard drive containing the currency.)

Solve More Practice Questions

How To Implement Naive Bayes From Scratch in Python ?

#How To Implement Naive Bayes From Scratch in Python #http://machinelearningmastery.com/naive-bayes-classifier-scratch-python/ #Dataset #https://archive.ics.uci.edu/ml/machine-learning-databases/pima-indians-diabetes/pima-indians-diabetes.data import csv import math import random #Handle data def loadCsv(filename): lines = csv.reader(open(filename, "r")) dataset = list(lines) for i in range(len(dataset)): dataset[i] = [float(x) for x in dataset[i]] return dataset #Test handling data """  filename = 'pima-indians-diabetes.data.csv' SomeDataset = loadCsv(filename) print("Loaded data file {0:s} with {1:5d} rows".format(filename,len(SomeDataset))) """ #Split dataset with ratio def splitDataset(dataset, splitRatio): trainSize = int(len(dataset) * splitRatio) trainSet = [] copy = list(dataset) while len(trainSet) < trainSize: index = random.randrange(len(cop...
Read more

Who is John McCarthy ? American Computer Scientist | AI

Image
John McCarthy John McCarthy was an American computer scientist and cognitive scientist. McCarthy was one of the founders of the discipline of artificial intelligence. John McCarthy (September 4, 1927 – October 24, 2011) was an American computer scientist and cognitive scientist. McCarthy was one of the founders of the discipline of artificial intelligence. He coined the term " artificial intelligence " ( AI ), developed the Lisp programming language family, significantly influenced the design of the ALGOL programming language, popularized timesharing, and was very influential in the early development of AI. McCarthy received many accolades and honors, such as the Turing Award for his contributions to the topic of AI, the United States National Medal of Science, and the Kyoto Prize. John McCarthy is one of the "founding fathers" of artificial intelligence, together with Marvin Minsky, Allen Newell and Herbert A. Simon. McCarthy coined the term "artifi...
Read more

Artificial Intelligence or AI

AI is the broad branch of computer science. The goal of AI is to create systems that can function intelligently and independently. Humans can speak and listen to communicate through language. This is the field of speech recognition. Much of speech recognition is statistically based hence it's called statistical learning. Humans can write and read a text in a language.  Humans can see with their eyes and process what they see.  Humans recognize the scene around them through their eyes which create images of that world. AI ( pronounced AYE-EYE ) was coined by John McCarthy , an American computer scientist, in 1956 at The Dartmouth Conference. According to John McCarthy, it is “ The science and engineering of making intelligent machines, especially intelligent computer programs ”. Artificial intelligence is the simulation of human intelligence processes by machines, especially computer systems or you can say "  Artificial Intelligence (AI)  is the scienc...
Read more