Toshiba satellite a20 series Benutzerhandbuch

1.3 2.5-inch Hard Disk Drive 

 

The removable 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 supports a 
30GB, 40GB, 60GB or 80GB HDD. 
 
The HDD is shown in figure 1-4. The specifications are listed in table 1-1. 
 
 

 

Storage size (formatted) 

30 40 

60 

Speed (RPM) 

4.200 5.400 

4.200 

5.400 

Data transfer speed (Mbits/s) 

154.3 – 298.0 

200.8 – 

333.2 

154.3 – 

298.0 

202.9 – 

373.3 

Interface transfer rate (MB/s) 

100 

Storage density (Kbpi) 

618 607 

618 

632 

Track density (Ktpi) 

78.9 57.1 78.9 

Average random seek time 
(read) (ms) 

12 

Average random seek time 
(write) (ms) 

- 

Motor start up time (ms) 

4