he period. This deterioration in market share, however, did not seriously affect the firm's industry dominance.
Table 1Comparison of Industry and IBM Sales
===============================================================
Industry/Firm Year 1986 1987 1988 1989
Industry $ 96.3 bil $109.0 bil $124.4 bil $132.5 bil
IBM $ 51.3 bil $ 54.2 bil $ 59.5 bil $ 63.0 bil
IBM/Industry 53.3% 49.7% 47.8% 47.5%
===============================================================
Sales outside of the US account for approximately 58 per cent of the total sales at IBM (Niemond, 1989b). With respect to profits, foreign operations are of even greater significance for the company, as foreign sales contributed 74 percent of IBM's pre tax earnings (Niemond, 1989b).
IBM is the world's largest supplier of advanced informa tion processing and communications systems, services, and pro gram products (Niemond, 1989b). The company also produces typewriters and other business related products. Major revenue sources at IBM are presented in Table 2, which may be found below on this page.
Table 2Revnue Sources and Contributions: IBM
===============================================================
Source Contribution Hardware sales 67.0%
Support services 16.0%
Software sales 13.0%
Rentals (leases) and financing 4.0%
...