Questions

Guglielmo Marconi, an Italian invetor invented Radio in 1890's.

Communications planning - Determining the information and communications needs of the project stakeholders.

Information Distribution - Making needed information available  to project stakeholders in a timely manner.

Performance Reporting - Collecting and distributing performance information. This includes status reporting, progress measurement, and forecasting.

Manage Stakeholders - Managing communications to satisfy the requirements of and resolve issues with project stakeholders.

In batched operating system the users gives their jobs to the operator who sorts the programs according to their requirements and executes them. This is time consuming but makes the CPU busy all the time.

Mutex is a program object that allows multiple program threads to share the same resource, such as file access, but not simultaneously. When a program is started a mutex is created woth a unique name. After this stage, any thread that needs the resource must lock the mutex from other threads while it is using the resource. the mutex is set to unlock when the data is no longer needed or the routine is finished.