Group Code Recording

(storage)(GCR) A recording method used for 6250 BPI magnetic tapes.

GCR typically uses a group of five bits of code to representfour bits of data. The encoding ensures no more than two orthree zeros occur in a row, and no more than eight or so onesoccur in a row, where zeros represent an absense of magneticchange.

GCR is also used on Commodore Business Machines diskettedrives; the 4040, 8050, 154x, 157x and 158x series of 5.25"and 3.5" low and high density diskette drives used with 8-bithome computers circa 1977 to 1992. It was also supported onAmiga internal and external drives but only used for readingnon-Amiga disks.

Compare NRZI, PE.

单词	group code recording
释义	Group Code Recording Group Code Recording (storage)(GCR) A recording method used for 6250 BPI magnetic tapes. GCR typically uses a group of five bits of code to representfour bits of data. The encoding ensures no more than two orthree zeros occur in a row, and no more than eight or so onesoccur in a row, where zeros represent an absense of magneticchange. GCR is also used on Commodore Business Machines diskettedrives; the 4040, 8050, 154x, 157x and 158x series of 5.25"and 3.5" low and high density diskette drives used with 8-bithome computers circa 1977 to 1992. It was also supported onAmiga internal and external drives but only used for readingnon-Amiga disks. Compare NRZI, PE. AcronymsSeeGCR
随便看	oklahoma state firefighters museum oklahoma state immunization information system oklahoma state medical association oklahoma state parks oklahoma state poultry federation oklahoma state regents for higher education oklahoma state roundup of young people in alcoholics anonymous oklahoma state school boards association oklahoma state skeet association oklahoma state sugar arts show oklahoma state treasurer oklahoma state university oklahoma state university alumni association oklahoma state university college of osteopathic medicine oklahoma state university foundation oklahoma state university medical center oklahoma state university rodeo association oklahoma state university stillwater oklahoma state university writing project oklahoma student government association oklahoma student loan authority oklahoma subaru owners club oklahoma subject area test oklahoma substance abuse services alliance oklahoma summer arts institute