One Thursday night on Twitter, online friends Tiffani Bell and Kristy Tillman were talking about Detroit’s water crisis and how a city could shut off water to 300,000 residents with delinquent accounts. Feeling frustrated, the two women decided to do something about it, and weeks later, built a system to match payments between donors and … Continue reading Empowering Kids to Code — What Every Parent Should Know →
A binary number with 8 bits (1 byte) can represent a decimal value in the range from 0 – 255. However, this only includes whole numbers and no real numbers (e.g. fractions) like 0.5 or 20.456 etc. To represent all real numbers in binary form, many more bits and a well defined format is needed. … Continue reading Binary numbers – floating point conversion →
Everything a computer does happens with numbers. A character in the alphabet is represented by a number in the computer memory, colors are numbers and even any decimal number has its specific representation in memory. Those numbers which are used by a computer are binary numbers [See: Why do computers use binary numbers?], and … Continue reading Famous number computing errors →
