IBM PC AT: The Great Evolution of the IBM PC

The IBM Personal Computer/AT (often simply referred to as the IBM PC AT or just AT) was a landmark personal computer released by IBM in August 1984. The “AT” stood for “Advanced Technology,” and it truly lived up to its name, setting a new standard for performance, expandability, and architecture that would dominate the PC … “IBM PC AT: The Great Evolution of the IBM PC” [More]

IBM PCjr: IBM’s ill-fated product that was innovative but failed due to missteps

The IBM PCjr (pronounced “PC junior”) was IBM’s attempt to enter the burgeoning home computer market in the mid-1980s. Released in late 1983, it was designed to be a more affordable and user-friendly version of the hugely successful IBM PC, targeting families and educational institutions. However, despite its pedigree and some innovative features, the PCjr … “IBM PCjr: IBM’s ill-fated product that was innovative but failed due to missteps” [More]

IBM PC XT: Another Big Evolution of the IBM PC

The IBM Personal Computer XT (eXtended Technology), often simply called the IBM XT, was a significant personal computer released by IBM in October 1983. It was a direct successor to the original IBM PC (released in 1981) and built upon its architecture, but with key improvements aimed primarily at the business market. Here’s a breakdown … “IBM PC XT: Another Big Evolution of the IBM PC” [More]

IBM: A Deep Dive into the Tech Giant

IBM (International Business Machines) is a multinational technology and consulting company with a history stretching back over a century. It’s a truly iconic company, and here’s a comprehensive overview, covering its history, current business, key technologies, and future outlook: 1. History – From Tabulating Machines to Tech Innovation Early Days (1911-1960s): IBM’s roots lie in … “IBM: A Deep Dive into the Tech Giant” [More]

The IBM PC: A Revolution in Personal Computing

The IBM PC: A Revolution in Personal Computing The IBM Personal Computer (PC), released on August 12, 1981, wasn’t the first personal computer, but it was arguably the most important. It fundamentally changed the landscape of computing, shifting it from a hobbyist pursuit to a mainstream business and personal tool. Here’s a deep dive into … “The IBM PC: A Revolution in Personal Computing” [More]

Codepage 437: IBM’s most widely used character codes

Codepage 437 of the IBM PC assigns various special symbols, extended Latin characters, and box drawing characters to the 33 control character points of ASCII (0x00 to 0x1F and 0x7F) and the 128 points of extended ASCII (0x80 to 0xFF), so that they can be used for semi-graphic purposes in text mode. In particular, box-drawing … “Codepage 437: IBM’s most widely used character codes” [More]