TOTAL COST OF OWNERSHIP (TCO) is a model developed by Gartner Group to analyze the direct and indirect costs of owning and using hardware and software. Managers of enterprise systems use various versions of TCO to lower costs while increasing the benefits of information technology deployments. The TCO includes: original cost of the computer and software, hardware and software upgrades, maintenance, technical support, and training. Most estimates place the TCO at about 3 to 4 times the actual purchase cost of the PC.
VOUCHER is a. a piece of substantiating evidence; a proof; or, b. a written record of expenditure, disbursement, or completed transaction; or, c. a written authorization or certificate, especially one exchangeable for cash or representing a credit against future expenditures.
PAYROLL, dependent upon usage, can mean a. the total amount of money paid in wages; b. a list of employees and their salaries; or, c. the department that determines the amounts of wage or salary due to each employee.
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