What is an operating system? What does it do? What are operating system control objectives?
An operating system is a computer's control program. It controls user sharing of applications and resources such as processors, memory, databases, and peripherals such as printers. Common PC operating systems include Windows 2000, Windows NT, and Linux.
An operating system carries out three primary functions: translating high level languages into machine language using modules called compilers and interpreters; allocating computer resources to users, workgroups, and applications; and managing job scheduling and multiprogramming.
Operating systems have five basic control objectives:
1 . to protect itself from users,
2 . to protect users from each other,
3 . to protect users from themselves,
4 . to protect it from itself, and
5 . to protect itself from its environment.
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The comprehensive approach dedicated to continuous quality improvement, training, and customer satisfaction is known as
A. quality rating. B. quality assurance. C. reengineering. D. quality control. E. total quality management.
Which of the following correctly demonstrates the comparison of the four-variance method of factory overhead analysis to the two-variance method of factory overhead analysis?
a. The sum of the fixed and variable spending and variable efficiency variances in the four-variance method is equal to the production-volume variance in the two-variance method. b. The sum of the fixed production-volume and variable efficiency variances in the four-variance method is equal to the production-volume variance in the two-variance method. c. The fixed production-volume variance in the four-variance method is equal to the production-volume variance in the two-variance method. d. The sum of the fixed spending and fixed production-volume variances in the four-variance method is equal to the production-volume variance in the two-variance method.
Esteos is a country in which the federal government and the twelve state governments share powers. The form of government in Esteos is called ________
A) authoritarianism B) federalism C) unitarianism D) democracy
Answer the following statement(s) true (T) or false (F)
Entrepreneurs are born, not made.