The IBM PCjr (pronounced "PC junior") was a home computer produced and marketed by IBM from March 1984 to May 1985, intended as a lower-cost variant of the IBM PC with hardware …

2019年5月1日 · The IBM PCjr failed because of three flaws: It was too expensive, too incompatible, and not expandable enough. While its competitors were trying to build new …

2014年6月8日 · I will start with comments on specific ads and features which I find interesting by page number, and then make some general comments. Fold-out Cover : Advertisement for the …

ibm pcjr 是ibm公司进军相对低廉的教育以及家庭用个人电脑市场的首次尝试，pcjr的型号为4860，它保留了ibm个人电脑的8088 cpu和bios 兼容性接口，但是在设计架构上却存在着差异。

2022年12月5日 · PCjr monitor on top of a PCsr, connected into a CGA through a makeshift adapter cable. The speaker inside the monitor was connected into an Ad Lib card inside the …

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2014年1月29日 · This Tandy 1000SX, from 1987, was essentially a no-compromises PCjr, combining PC-like expandability with PCjr graphics and sound. Unlike the PCjr, the Tandy …

The IBM PCjr. had a chip called the Video Gate Array (VGA) that controlled the graphics modes in conjunction with the MC6845. Tandy implemented this VGA, but its implementation was a little …

2024年7月21日 · NEW YORK — IBM has reportedly put its personal computer business up for sale in a deal that could fetch as much as $2 billion and close an era for an industry pioneer …

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