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1.1 ! root 1: ! 2: ! 3: block Technical Information block ! 4: ! 5: ! 6: ! 7: ! 8: A block is a mass of data that is read at one time. Blocks are ! 9: different lengths under different operating systems; COHERENT ! 10: defines a block as being BSIZE bytes long. ! 11: ! 12: Information is read in blocks from block-special devices, such as ! 13: the hard disk or floppy disks. This is done to increase the ! 14: speed with which data are read from these devices; reading ! 15: characters one at a time, such as is done with character-special ! 16: devices such as terminals or modems, would be too slow. ! 17: ! 18: ***** See Also ***** ! 19: ! 20: technical information ! 21: ! 22: ! 23: ! 24: ! 25: ! 26: ! 27: ! 28: ! 29: ! 30: ! 31: ! 32: ! 33: ! 34: ! 35: ! 36: ! 37: ! 38: ! 39: ! 40: ! 41: ! 42: ! 43: ! 44: ! 45: ! 46: ! 47: ! 48: ! 49: ! 50: ! 51: ! 52: ! 53: ! 54: ! 55: ! 56: ! 57: ! 58: ! 59: ! 60: ! 61: ! 62: ! 63: ! 64: COHERENT Lexicon Page 1 ! 65: ! 66:
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