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The Sun386i (codenamed ''Roadrunner'') is a discontinued hybrid UNIX workstation/PC compatible computer system produced by Sun Microsystems, launched in 1988. It was based on the Intel 80386 microprocessor but shared many features with the contemporary Sun-3 series systems. == Hardware == Unlike the Sun-3 models, the Sun386i had a PC-like motherboard and "mini-tower"-style chassis. Two variants were produced, the Sun386i/150 and the Sun386i/250 with a 20 or 25 MHz CPU respectively. The motherboard included the CPU, 80387 FPU, 82380 timer/DMA/interrupt controller and a custom Ethernet IC called ''BABE'' ("Bus Adapter Between Ethernet"). Floppy disk, SCSI, RS-232 and Centronics parallel interfaces were also provided, as were four ISA slots (one 8-bit, three 16-bit) and four proprietary 32-bit "local" bus slots. The latter were used for RAM and frame buffer cards. Two type of RAM card were available, a 4 or 8 MB card, and the "XP Cache" card, incorporating up to 8 MB with an 82385 cache controller and 32 KB of cache SRAM. Up to two memory cards could be installed, to give a maximum RAM capacity of 16 MB. Mass storage options were either 91 or 327 MB internal SCSI hard disks and a 1.4 MB 3.5 in floppy drive. A storage expansion box that holds two more disks could be mounted to the top of the chassis. Frame buffer options included the 1024×768 or 1152×900-pixel monochrome BW2 card, the 8-bit color CG3 with similar resolutions, or the accelerated 8-bit color CG5, otherwise known as the ''Roadracer'' or GXi framebuffer. This used the TI TMS34010 graphics processor and had a resolution of 1152x900. In addition, one could install a "SunVGA" accelerator card in the ISA expansion slot that would allow a DOS session to display a full VGA window on the desktop. The 386i introduced the Sun Type 4 keyboard, a hybrid of the earlier Type 3 and PC/AT layouts. This was later used for the SPARCstation line of workstations. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sun386i」の詳細全文を読む スポンサード リンク
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