Category: BBST Foundations

TL;DR In the previous post, we explained that basic data types tend to cluster together and form records of data. Here are common software bugs related to records. The post…

TL;DR In this post, we point out the most common software bugs that are related to strings. The post is aligned with the Black Box Software Testing Foundations course (BBST)…

TL;DR Every programming language must have the following data structures: strings, records, arrays, and lists. We explain what reasoning is behind that fact. The post is aligned with the Black…

TL;DR The usual cause of software bugs is when the program interprets bits pattern in the wrong way. Here are data encodings/decodings basics with examples. The post is aligned with…

TL;DR Every computer is still using ASCII codes. Here is a brief history of ASCII codes. The post is aligned with the Black Box Software Testing Foundations course (BBST) designed…

TL;DR As a software tester, you probably have seen a string of hexadecimal numbers. Let’s see why computers are using hexadecimal numbers. The post is aligned with the Black Box…

TL;DR Computers use words too! We will explain what is a computer word. The post is aligned with the Black Box Software Testing Foundations course (BBST) designed by Rebecca Fiedler,…

TL;DR In the last post, we presented Binary numbers. Let’s explore Binary numbers arithmetic and interesting software testing problems that could arise. The post is aligned with the Black Box…

TL;DR Now that we know the decimal number system, it is time to switch to the binary computer number system. The post is aligned with the Black Box Software Testing…

TL;DR The disadvantage of fix-point decimal number representation is a limited number of significant digits that we can store in memory. That implies that we lose precision. Let’s examine floating-point…