During the late 1980s, Intel sold two ISA expansion cards named Intel Inboard 386/AT and Intel Inboard 386/PC, which allowed users to upgrade an IBM AT or an IBM PC (or compatible) respectively. The boards allowed users to upgrade their machines' CPU to a 16 MHz 80386 processor. Both variants utilized a ribbon cable which plugged into the computer's original CPU socket on one end and into a socket on the Inboard card on the other end.
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| - Intel Inboard 386 (en)
- Intel Inboard 386 (ja)
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| - Intel Inboard 386/ATおよびIntel Inboard 386/PCは1980年代のISA拡張カードで、IBM ATおよびIBM PCをそれぞれIntel 80386搭載PCへとアップグレードさせるものである。 このカードはフルレングスのISAカードで、16MHzの386プロセッサと387コプロセッサ用のソケット、1MBのRAMを搭載しており、2MBないしは4MBのRAMがオプションとして利用可能であった。このカードはXTもしくはATのBIOSがPOSTを完了したあとに有効化され、MS-DOSなどのOSがデバイスドライバを組み込むものとなっている。 (ja)
- During the late 1980s, Intel sold two ISA expansion cards named Intel Inboard 386/AT and Intel Inboard 386/PC, which allowed users to upgrade an IBM AT or an IBM PC (or compatible) respectively. The boards allowed users to upgrade their machines' CPU to a 16 MHz 80386 processor. Both variants utilized a ribbon cable which plugged into the computer's original CPU socket on one end and into a socket on the Inboard card on the other end. (en)
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| - During the late 1980s, Intel sold two ISA expansion cards named Intel Inboard 386/AT and Intel Inboard 386/PC, which allowed users to upgrade an IBM AT or an IBM PC (or compatible) respectively. The boards allowed users to upgrade their machines' CPU to a 16 MHz 80386 processor. Both variants utilized a ribbon cable which plugged into the computer's original CPU socket on one end and into a socket on the Inboard card on the other end. Both boards were full-length ISA expansion cards and occupied one slot. Each card came with 1MB of onboard memory as standard, included an 80386 processor, and included a socket for an 80387 math coprocessor. Originally, the Intel Board 386/AT offered board without memory and 1MB of memory for USD $1,995 and USD $2,495 respectfully. Later into the lifespan of the Inboard, Intel began offering 2 MB and 4 MB memory expansion daughter cards. Initially, the Intel Inboard 386/AT have available 1MB piggyback memory board for USD $645 and 2MB piggyback memory board for USD $1,145. The available Intel Inboard 386/AT has the optional module of 10-MHz 80287 Mathematics Coprocessor for USD $495. The Intel Inboard 386/PC comes with 1 Mbyte of 32-bit memory which it has no switches and jumpers. This version was available for USD $995. Daughter boards designed for use in the Intel Inboard 386/PC were incompatible with the Intel Inboard 386/AT and vice versa. The 4MB board was only produced for the Inboard 386/PC. Both boards utilized DOS drivers to configure the onboard memory. Without these drivers, the boards would still function, but the onboard memory could only be used as conventional, and not as extended or expanded. The Intel Inboard DOS drivers could also be configured to "slow down" system performance by adding memory wait states, thus alleviating compatibility issues. (en)
- Intel Inboard 386/ATおよびIntel Inboard 386/PCは1980年代のISA拡張カードで、IBM ATおよびIBM PCをそれぞれIntel 80386搭載PCへとアップグレードさせるものである。 このカードはフルレングスのISAカードで、16MHzの386プロセッサと387コプロセッサ用のソケット、1MBのRAMを搭載しており、2MBないしは4MBのRAMがオプションとして利用可能であった。このカードはXTもしくはATのBIOSがPOSTを完了したあとに有効化され、MS-DOSなどのOSがデバイスドライバを組み込むものとなっている。 (ja)
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