Module 2.3 Flashcards
What is the informal definition of a process?
A program in execution
What is the broad definition of a process?
All CPU activities
What keeps track of all the processes running?
PCB (Process Control Block)
What data are included in PCB (Process Control Block?
-Process ID
-Process State
-Process Priority
-Memory Usage
-Allocated Resource
What are resources needed for processes?
-CPU
-Main Memory
-I/O
What are threads?
Parts of a process that may run concurrently
Another name for threads?
lightweight process
What is a heavyweight process?
contains only one thread
What are peer threads?
Threads belonging to the same process
Why are threads process-dependent?
You cant have a thread without a process; threads are not standalone
What is time slicing?
Needed for resources that is shared in time
What is inter-process communication?
a process may communicate with one or more processes
What is a socket?
An endpoint for communication
What is inter-process communication over a network?
A pair of communicating processes consists of two sockets
What is virtualization?
Multiple virtual systems hosted in one hardware
