For the larger HP-86 and HP-87 series, HP also offered a plug-in CP/M processor card with a separate Zilog Z80 processor. [5] . HP would later embrace CP/M more substantially and release the HP-125 running CP/M 2.2 as standard. [6] The late 1970s saw the development of inexpensive home computers such as the Apple II and TRS-80.

HP-86. This low-slung model omitted the CRT display, tape drive and thermal printer of the HP-85. An external monitor could be driven via its composite output and there was a provision for adding up to two external disk drives and a printer. The HP-83, HP-85, and HP-86A did not have built-in HP-IB but HP-IB support could be added.

The 86 was an even more modular 80 Series machine than the 83. The 86 had no built in printer, mass storage or display. The 86A came standard with two interfaces for 9130 floppy drives and a parallel (Centronics type) printer interface. The 86 had an output port for composite video.

The HP-86 personal computer offered users more options and expandability than the HP-85, which had been introduced two years earlier. In addition to an interface for an external monitor, the HP-86 also had built-in interfaces for two HP 9130A disc drives and a Centronics-compatible printer for additional system configurations.

The HP-86 personal computer offered users more options and expandability than the HP-85, which had been introduced two years earlier. In addition to an interface for an external monitor, the HP-86 also had built-in interfaces for two HP 9130A disc drives and a Centronics-compatible printer for additional system configurations.

HP-86 The HP-86 series was the same machines as the HP-87 but used a 9" or 13" external monochrome monitor. The built-in BASIC language derived from the HP-85's but featured about 20 additional graphics commands. It also allowed to …

品牌：惠普(hp) 产品定位：性价比机,商用电脑; 系列：惠普（HP）-战86系列; 型号：HP Zhan 86 Pro G1 MT; 能效标识：二级; 操作系统：Windows10; 核心数：四核心; CPU类型：Intel i5; CPU型号：i5-7500; CPU主频：3.4; 内存类型：DDR4; 内存容量：4G; 插槽数量：6个; 最大支持内存 ...

Mid-life improvements to the family included the HP-85B, the HP-87XM and the HP-86B. All offered additional built-in features and more memory. Although marketed as a single compatible family of computers, the Series 80 machines were split into two groups.

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