In February 1991, Areal Technology released the MD-2060, the first hard drive to use a glass substrate, replacing the aluminium alloys used in earlier hard drives. It was originally designed for laptops, for which the greater shock resistance of glass substrates are more suitable. Toshiba followed suit with the MK1122FC in April 1991; their factories were able to produce many more drives than Areal, which soon disappeared from the market. Around 2000, other hard drive manufacturers started transitioning from aluminum to glass platters because glass platters have several advantages over aluminum platters.Charles M. Kozierok. "The PC Guide". Section "Platter Substrate Materials".Mark Brownstein. "Glass Becoming Viable for Hard Drives". p. 28. InfoWorld. 1989 March 13.Scott Mueller. "PC Hardware Library Volume I: Hard Drives". Section "Hard Disk Platters (Disks)". 1998.
In February 1991 Areal Technology released the MD-2060 the first hard drive to use a glass substrate replacing the aluminium alloys used in earlier hard drives It was originally designed for laptops for which the greater shock resistance of glass substrates are more suitable Toshiba followed suit with the MK1122FC in April 1991; their factories were able to produce many more drives than Areal which soon disappeared from the market Around 2000 other hard drive manufacturers started transitioning from aluminum to glass platters because glass platters have several advantages over aluminum plattersCharles M Kozierok "The PC Guide" Section "Platter Substrate Materials"Mark Brownstein "Glass Becoming Viable for Hard Drives" p 28 InfoWorld 1989 March 13Scott Mueller "PC Hardware Library Volume I Hard Drives" Section "Hard Disk Platters (Disks)" 1998