How magnetic core memory works
Looking back at computing history in interesting. Firstly, the concepts and hardware implementations are usually simpler and easier to understand – I bought my first computer in the early 1980s and I pretty much understood the whole thing down to…
An introduction to map projections
Many years ago I worked for a company that wrote Geographic Information Systems (GIS) software. A GIS application lets you work with different kinds of geographic and relational data, doing various kinds of analysis and representation. My job mainly involved…