Apple Macintosh II(1987):苹果把Mac II的顾客群定向了商业用户,它还是Mac系列中第一台主机和显示器分离的专业型电脑,专为图像处理领域所设计。Mac II具有很高的速度和很强的扩展性。使用68020的CPU和68881的浮点运算处理器。 可进行32位数据处理。Mac II同样是首款彩色Mac电脑,且使用了一个完整大小的键盘。
Macintosh II发布于1987年3月,是苹果II机流行概念的回归。 Mac II配置了软盘和硬盘驱动器,有六个扩展槽,并且支持外接彩色显视器,这与原来的Mac完全不同。
Motorola MC68020编辑本段回目录
Macintosh II使用的是Motorola MC68020处理器,它的中央处理器主频为16 MHz,协处理器是68881,总线速度同样达到16MHz,位宽32bit。
技术参数:
中央处理器: Motorola MC68020
中央处理器速度:16 MHz
协处理器:68881
总线速度:16 MHhz
数据路径:32 bit
只读存储器: 256KB
内存类型:30 pin SIMM
内存速度: 130 ns
内存插槽:8
最大的内存:20 MB (68 MB via FDHD upgrade kit)
一级缓存:0.25 kb
开始上市时间:1987年三月
终止销售时间:1990年一月
NAME | MACINTOSH II |
MANUFACTURER | Apple |
TYPE | Professional Computer |
ORIGIN | U.S.A. |
YEAR | 1987 |
BUILT IN LANGUAGE | None |
KEYBOARD | Full stroke 81 keys with numeric keypad and cursor keys Optional extended 105 key keyboard with 15 function keys ($229!) |
CPU | Motorola MC 68020 |
SPEED | 15.66 MHz |
CO-PROCESSOR | Motorola 68881 (numeric coprocessor) |
RAM | 1 MB, up to 8 MB on board and 2 GB via NuBus add-on slots |
ROM | 256 KB |
GRAPHIC MODES | 640 x 480 (The MAC II uses a NUBUS video card, this card could be replaced with any other more powerful one). |
COLORS | 16 or 256 among 16.7 millions |
SOUND | Apple sound chip - 4 voices 1 channel. Can drive external stereo equipment |
SIZE / WEIGHT | 47.4 (W) x 36.4 (D) x 14 (H) cm / 12 Kg |
I/O PORTS | Six Internal NUBUS slots (10 MHz, 32 bits), ADB (2 : Keyboard, mouse), RS232/422 (2), Disk, Monitor |
BUILT IN MEDIA | 1 or 2 3.5'' floppy disc drives |
OS | Macintosh System 4.0 + Finder 5.4 (can boot up to System 7.5.5) |
POWER SUPPLY | Self configuring switching power supply unit |
PERIPHERALS | 20 to 80 MB SCSI hard disk |
PRICE | $3769 (1 x 800 KB FDD, 1 MB of RAM) Hard discs: 20 MB ($999), 40 MB ($1599), 80 MB ($2699) |
1987年3月2日,Macintosh II上市编辑本段回目录
Mac II
1990年3月
Mac II的衍生产品
1988年到1990
左:Mac IIfx;右上:Ma
技术指标编辑本段回目录
Macintosh II
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Memory | Video Memory | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Physical | Software | Storage | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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相关链接编辑本段回目录
- apple-history.com
- Mac II profile on Low End Mac
- Macintosh II technical specifications at apple.com
参考文献编辑本段回目录
http://en.wikipedia.org/wiki/Macintosh_II
http://support.apple.com/kb/SP193
http://www.old-computers.com/museum/computer.asp?st=1&c=161