Toshiba A200 Hardware Overview Hard Disk Drive, Specifications, Parameter, HDD2190B HDD2189B

1 Hardware Overview 1.2 Hard Disk Drive

1.2Hard Disk Drive

The HDD is a random-access, non- volatile storage device. It has a non-removable 2.5- inch magnetic disk and mini-Winchester type magnetic heads. The computer is equipped with a 40 or 60GB HDD.

Figure 1-4 shows a view of the 2.5- inch HDD and Tables 1-1 lists the specifications.

Figure 1-4 2.5-inch HDD

Table 1-1 2.5-inch HDD specifications

			specifications
Parameter		TOSHIBA		TOSHIBA
		HDD2190B		HDD2189B
Outline	Width (mm)	69.85		69.85
dimensions	Height (mm)	9.5		9.5
	Depth (mm)	100.0		100.0
	Weight (g)	95		95
Storage size (formatted)		40		60
Speed (RPM)		4200		4,200
Data transfer speed (Mb/s)		175.0-341.7		175.0-341.7
Interface transfer rate (MB/s)			100 max.
			(Ultra DMA mode)
Track density (Ktpi)		88.1		88.1
Average seek time (ms)
Read		12		12
Write
		-		-
Start time (ms)		4		4

1-10 PORTEGE A200 Maintenance Manual (960 -499)