Start learning 50% faster. Sign in now
Let the total work be 1 unit. A’s efficiency = 1/15 (work per day). A and B together = 1/10 (work per day). B's efficiency = (1/10) - (1/15) = (3 - 2)/30 = 1/30 (work per day). Thus, B alone can complete the work in 30 days.
What is the purpose of a device driver in an operating system?
It is a computer programme allowing higher level computer program to interact with a hardware device-
Which of the following SQL commands is used to make permanent changes to the database?
The capacity of a CPU is measured.
Portrait and Landscape are __________:
Which of the following best describes "real-time protection" in antivirus software?
Which one of the following is not a computer language?
Which device is mainly used for security purposes and for making attendance of employees/ students in
____________ displays a list of utility configure the computer system and install software and hardware.
A computer that is connected to a network is known as