Search (3 results, page 1 of 1)

  • × author_ss:"Nicholls, P."
  • × theme_ss:"Informationsmittel"
  1. Nicholls, P.: Multimedia and CD-ROM Directory 1998 (1998) 0.01 
    0.005946367 = product of:
  0.023785468 = sum of:
    0.023785468 = weight(_text_:information in 3586) [ClassicSimilarity], result of:
      0.023785468 = score(doc=3586,freq=6.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.2687516 = fieldWeight in 3586, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=3586)
  0.25 = coord(1/4)
    Abstract
    Traces double change in ownership of the Multimedia and CD-ROM Directory, now over 10 years old and reviews the 1998 edition under the imprint Waterlow New Media Information. Also describes Waterlows new specialised tool, the DVD Directory. The Gale Directory of Databases and Bowker's World Databases might be suitable alternatives to certain users but the Waterlow product should be the first choice for libraries seeking a source of directory information related to CD-ROM
    Source
    Information today. 15(1998) no.8, S.45
  2. Nicholls, P.; Sutherland, T.: CD-ROM databases : a survey of commercial publishing activity (1992) 0.00 
    0.0034331365 = product of:
  0.013732546 = sum of:
    0.013732546 = weight(_text_:information in 4850) [ClassicSimilarity], result of:
      0.013732546 = score(doc=4850,freq=2.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.1551638 = fieldWeight in 4850, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=4850)
  0.25 = coord(1/4)
    Abstract
    Reports on: commercially available CD-ROM titles for 1985-91; plots the comparative growth of CD-ROM and online titles for 1984-92; database type trends (indexes, source and reference) for 1987-91; subject distribution (social services 43%, science and technology 35%, arts and humanities 8% and general 13%); library and information science databases (including catalogues); CD-ROM hardware platform trends for 1990-91; CD-ROM update frequency trends; and overall, medium price trends for 1987-91. The medium price for CD-ROM databases has declined from $ 1273 in 1987 to $ 702 in 1991
  3. Nicholls, P.: CD-ROM market directories ondisc : will that be six of one or a half dozen of the other? (1993) 0.00 
    0.0030039945 = product of:
  0.012015978 = sum of:
    0.012015978 = weight(_text_:information in 5821) [ClassicSimilarity], result of:
      0.012015978 = score(doc=5821,freq=2.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.13576832 = fieldWeight in 5821, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5821)
  0.25 = coord(1/4)
    Abstract
    Reviews and compares the 2 major CD-ROM directory databases covering available CD-ROM databases: CD-ROMs in prit, published by Meckler Co.; and CD-ROM directory, published by TFPL Publ. Covers: system requirements, scope, coverage and overlap, data collection, data structure, saerchable indexes, subject indexing, special indexes, record content, searching power, ease of use, output capabilities, terms of availability, documentation, help and technical support, and related information products. Concludes that neither product has a fatal flaw of any sort, each has its own special strenghts, one or more of which may provide the basis for preferring one over the other