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Finally, embedded in the 2C33 is an 8KB BIOS ROM. The Disk Cards used are double-sided, with a total capacity of 112 KB per disk. Many games span both sides of a disk and a few span multiple disks, requiring the user to switch at some point during gameplay. The Disk System is capable of running on six C-cell batteries or the supplied AC adapter ...
[70] [71] This service provided the CD-i with full internet access (with a 14.4k modem [72]), including online shopping, email, and support for networked multiplayer gaming on select CD-i games. [73] The service required a CD-i player with DV cartridge, and an "Internet Starter Kit" which initially retailed for £99.99. [74]
The phrase "IBM PC compatible self-booting disk" is sometimes shortened to "PC booter". Self-booting disks were common for other computers as well. These games were distributed on 5 + 1 ⁄ 4 " or, later, 3 + 1 ⁄ 2 ", floppy disks that booted directly, meaning once they were inserted in the drive and the computer was turned on, a minimal ...
The CD-ROM itself may contain "weak" sectors to make copying the disc more difficult, and additional data that may be difficult or impossible to copy to a CD-R or disc image, but which the software checks for each time it is run to ensure an original disc and not an unauthorized copy is present in the computer's CD-ROM drive. [citation needed]
This allows a DVD drive to focus the beam on a smaller spot size and to read smaller pits. DVD lens supports a different focus for CD or DVD media with same laser. With the newer Blu-ray Disc drives, the laser only has to penetrate 0.1 mm of material. Thus the optical assembly would normally have to have an even greater focus range.
Famicom Disk System disk drive and RAM adapter attached to the Famicom console. The Family Computer Disk System (Famicom Disk System) has a library of 200 [a] games that have been officially licensed by Nintendo. Famicom Disk System games were released only in Japan. Cartridge games are in the list of Nintendo Entertainment System games.
HD DVD drives can also be used with a desktop/laptop (notebook computer) or personal computer (PC (like a desktop or portable/luggable)) running Windows XP, Windows Vista, Mac OS X v10.5 "Leopard", and many varieties of Linux. Third-party player software for Windows and Linux have successfully played HD DVD titles using the add-on drive.
Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering. As faster drives were released, the write speeds and read speeds for optical discs were multiplied by manufacturers, far exceeding the drive speeds originally released onto the market.