CD-ROM normally expressed with binary prefixes, subtracting the space used for error correction data. A standard 120 mm, "700 MB" CD-ROM can actually hold about 737 MB (703 MiB) of data with error correction (or 847 MB total). In comparison, a single-layer DVD-ROM can hold 4.7 GB of error-protected data, more than 6 CD-ROMs. CD-ROM discs are read using CD-ROM drives. A CD-ROM drive may be connected to the computer via an IDE (ATA), SCSI, SATA, FireWire, or USB interface or a proprietary interface, such as the Panasonic CD interface, LMSI/Philips, Sony and Mitsumi standards. Virtually all modern CD-ROM drives can
John Leigh Philips Philips himself became involved in the textile industry. For a time he was in business with his brother Francis, who outlived him, dying in 1850. As a young man Philips frequented the "Roscoe Circle" in Liverpool—the intellectual group around William Roscoe—meeting there William Paulet Carey, James Currie and Daniel Daulby. In late 1803 Philips was granted command of the First Regiment of the Manchester and Salford Corps, a volunteer militia which served as part of Britain's Home Guard during the French Revolutionary Wars. His brother Francis was appointed to a subordinate role in the same Corps alongside three of his