powerbook 100(1), Apple
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K
Service Source
PowerBook 100
K
Service Source
Specifications
PowerBook 100
Specifications
Processor - 1
Processor
CPU
Motorola 68HC000, 16-bit CMOS microprocessor
15.6672 MHz
Addressing
32-bit internal registers
24-bit address bus
16-bit data bus
Specifications
Memory - 2
Memory
RAM
2 MB of 100 ns pseudostatic RAM (PSRAM) standard, expandable
to 8 MB
ROM
256K (two 128K by 8-bit devices); 150 ns access time;
addressing supports up to 4 MB
PRAM
128 bytes of parameter memory
VRAM
32K of pseudostatic video display memory
Clock/Calendar
CMOS custom chip with long-life lithium battery
Specifications
Disk Storage - 3
Disk Storage
Floppy Drive
(Optional)
External Macintosh HDI-20 1.4 MB drive
4.5 W startup power; 1.25 W random operation; 50 mW idle
20 MB Hard Drive
20 MB formatted capacity
Apple SCSI interface; 2.5 in. mechanism
23 msec average access time (maximum)
5.0 W startup power; 2.7 W random operation
40 MB Hard Drive
40 MB formatted capacity
Apple SCSI interface; 2.5 in. mechanism
<19 msec average access time (maximum)
5.0 W startup power; 2.25–2.5 W random operation; 1.3–1.5 W
idle
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