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Chapter 1 19
Modem/LAN connector location Rear Side
Floppy Disk Drive Interface
Item Specification
Vendor & model name Mitsumi D353F3X
Floppy Disk Specifications
Media recognition 2DD(720KB) 2HD(1.2MB, 3-mode) 2HD(1.44MB)
Sectors/track 9 15 18
Tracks 80 80 80
Data transfer rate (Kbit/s) 1MB 1.6MB 2MB
Rotational speed (RPM) 300 360 300
Read/write heads 2
Encoding method MFM/FM
Power Requirement
Input Voltage (V) +5V +/- 10%
Hard Disk Drive Interface
Item Specification
Vendor & Model Name IBM DARA-209000 IBM DARA-212000 Hitachi DK23AA-12
Capacity (GB) 9 12 12
Bytes per sector 512 512 512
Logical heads 16 16 16
Logical sectors 63 63 63
Drive Format
Logical cylinders 16383 16383 16383
Physical read/write
heads
34 4
Disks 2 2 2
Spindle speed (RPM) 4200 4200 4200
Performance Specifications
Buffer size (KB) 418 418 512
Interface IDE (ATA-4) IDE (ATA-4) IDE (ATA-5)
Data transfer rate (disk
buffer, MB/s)
85.5-161.6 85.5-161.6 12.4-20.6
Data transfer rate (host
buffer, MB/s)
16.6 (PIO Mode-4)
66.6 (Ultra DMA Mode-4)
16.6 (PIO Mode-4)
66.6 (Ultra DMA Mode-4)
16.6 (PIO Mode-4/Multiword
DMA Mode-2)
66.6 (Ultra DMA Mode-4)
DC Power Requirements
Voltage tolerance 5+/-5% 5+/-5% 5+/-5%
LAN & Modem Interface
Item Specification