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Appendix A: Market Research

Product Revenues 1970-1988

COMPUTER COMMUNICATIONS PRODUCT REVENUES 1970-1988 ($MILLIONS)
PRODUCT 1970 1982 1983 1984 1985 1986 1987 1988
DATA MODEMS 33 675 791 866 934 962 993 873
PC MODEMS   96 127 182 233 281 307 389
MULTIPLEXORS 13 180 245 289 303 319 256 194
DATA PBX’s   45 77 119 143 86 82 80
DATA COMMUNICATIONS 46 996 1240 1456 1613 1648 1638 1536
LOCAL AREA NETWORKING   63 152 326 593 913 1675 2820
T-1 MULTIPLEXORS     30 61 158 241 309 388
BRIDGES & ROUTERS       20 30 45 90 175
INTERNETWORKING     30 81 188 286 399 563
TOTAL: $46 $1,059 $1,422 $1,863 $2,394 $2,847 $3,712 $4,919
Growth Rate:   n/a 34% 31% 29% 19% 30% 33%

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