Question
‘A’ and ‘B’ can do a piece of work in 20 days
and 30 days, respectively. If they started the work together and worked on it for 7 days, then find the time taken by ‘B’ alone to complete the remaining work.Solution
Let total amount of work be 60 units Efficiency of ‘A’ = 60/20 = 3 units/day Efficiency of ‘B’ = 60/30 = 2 units/day Amount of work done by ‘A’ and ‘B’ together in 7 days = (3 + 2) × 7 = 35 units Time taken by B to complete remaining work = (60 – 35)/2 = 12.5 days
_________ term is used for those hardware devices that are not part of the main computer system and are often added later to the system.
What type of operating system manages a group of networked computers and makes them appear as a single computer?
Errors in computer programmes are called :
Recording a television programme on a VCR is an example of
A _________ is a text file that a Web browser stores on a user’s machine.Â
The largest unit of storage is
An Operating System is an example of:
Which of the following is the appropriate definition for Information Technology?
The most suitable type of network that phone lines would us is
What type of operating system switches tasks based on their priorities or external events?
Relevant for Exams:
