TZX and TAP – to preserve the past 
Inside Spectrum + 
Not only computers 
Peripherals 
Calculate a definite integral for a function in Spectrum BASIC 
TZX and TAP – to preserve the past
The TZX file format is a digital file format commonly associated with ZX Spectrum emulators and software preservation. TZX stands...
Inside Spectrum +
The ZX Spectrum+ is an upgraded version of the original ZX Spectrum home computer. While the external appearance and keyboard...
Not only computers
In addition to computers, Sinclair Research, the company founded by Sir Clive Sinclair, produced a range of other devices and...
Peripherals
The ZX Spectrum had a range of peripherals that could be connected to enhance its functionality. Here are some of...
Calculate a definite integral for a function in Spectrum BASIC
What is and how to calculate a definite integral for a function? Calculating a definite integral involves finding the area...
Sinclair’s computers
Sir Clive Sinclair's company, Sinclair Research, released several computer models during its active years. Here are some notable computer models...
How to plot a diagrams
Let's use the example from the post about BASIC programing - Example BASIC program. To plot the graph of a...
Example BASIC program
Here's an example ZX Spectrum Basic program that solves a quadratic equation: 10 PRINT "Quadratic Equation Solver"20 PRINT "Enter the...
What is BASIC?
The ZX Spectrum Basic is the built-in programming language of the ZX Spectrum computer. It is an implementation of the...
How the Z-80 work
The Z80 microprocessor is an 8-bit CPU (Central Processing Unit) that was introduced by Zilog in 1976. It became one...