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The Macintosh IIx was introduced by Apple Computer in 1988 as an incremental update of the original Macintosh II model. It replaced the 16 MHz Motorola 68020 CPU and 68881 FPU of the II with a 68030 CPU and 68882 FPU running at the same clock speed; and the 800 KB floppy drive with the 1.44 MB SuperDrive (the first Mac to have this feature). The initial price of the IIx was US$7,769 or $9,300 for a version with the 40 MB hard disk drive. The Mac IIx sported 0.25 KiB of L1 instruction CPU cache, 0.25 KiB of L1 data cache, a 16 MHz bus (1:1 with CPU speed), and supported up to System 7.5.5. The IIx was the second of three Macintosh models to use this case allowing dual floppy drives and 6 NuBus slots; the last model was the Macintosh IIfx. Apple's nomenclature of the time used the 'x' to indicate the presence of the '030 CPU as used in the Macintosh IIcx and IIvx. Apple's codenames for the IIx included "Spock" and "Stratos". Support and spare parts for the IIx were discontinued on August 31, 1998. ==External links== * (Macintosh IIx technical specification ) at apple.com (broken link) * (Macintosh IIx technical specifications ) at EveryMac (Accessed 9/11/2015) 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「Macintosh IIx」の詳細全文を読む スポンサード リンク
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