A process control block (PCB) contains
information about the process, i.e. registers, quantum, priority, etc
. The process table is an array of PCB’s, that means logically contains a PCB for all of the current processes in the system.
What does a process control block does not contain?
1. A Process Control Block(PCB) does not contain which of the following? Explanation: Process Control Block (PCB) contains
information related to a process such as Process State, Program Counter, CPU Register
, etc. … Bootstrap program is a program which runs initially when the system or computer is booted or rebooted.
What are the components of process control block?
- Process State. This specifies the process state i.e. new, ready, running, waiting or terminated.
- Process Number. …
- Program Counter. …
- Registers. …
- List of Open Files. …
- CPU Scheduling Information. …
- Memory Management Information. …
- I/O Status Information.
What is process control block Why is it needed what does it typically contain?
All of the information needed to keep track of a process when switching is kept in a data package called a process control block. The process control block typically contains:
Pointers to the locations in the program and its data where processing last occurred
. …
Register contents
.
What is block process?
A process always exists in exactly one process state. A process that is blocked is
one that is waiting for some event
, such as a resource becoming available or the completion of an I/O operation. In a multitasking computer system, individual tasks, or threads of execution, must share the resources of the system.
What is the purpose of process control block?
A process control block (PCB) is
a data structure used by computer operating systems to store all the information about a process
. It is also known as a process descriptor. When a process is created (initialized or installed), the operating system creates a corresponding process control block.
What are the two steps of a process execution?
Answer is “
I/O Burst, CPU Burst
“
Which block is not a control block?
Explanation: 1 ans is the
control bolock
hope its helps you!!
What will happen when a process terminates?
What will happen when a process terminates? Explanation: When a process terminates,
it removes from all queues
. All allocated resources to that particular process are deallocated and all those resources are returned back to OS. … Long-term scheduler selects processes from the job queue and puts them in the ready queue.
Why a process can be terminated due to?
Explanation: A process can be terminated normally by completing its task or
because of fatal error or killed by another process or forcefully killed by a user
. When the process completes its task without any error then it exits normally. … Process is ready for execution but waiting for the CPU to be allocated.
What are the 3 different types of scheduling queues?
- Job queue − This queue keeps all the processes in the system.
- Ready queue − This queue keeps a set of all processes residing in main memory, ready and waiting to execute. …
- Device queues − The processes which are blocked due to unavailability of an I/O device constitute this queue.
Why does the process control block contain a process ID?
Process ID:
In computer system there are various process running simultaneously and each process has its unique ID. This Id
helps system in scheduling the processes
. This Id is provided by the process control block.
What are the components of a process?
A component process is
a series of user-defined steps that operate on a component’s artifacts
. Each component has at least one process that is defined for it and can have several. A component process can be as simple as a single step or contain numerous steps and relationships.
Who can block the running processes?
29) Who among the following can block the running process? 30) Which of the following does not interrupt the running process? Explanation:
Scheduler
process does not interrupt in any running process. Its job is to select the processes for long-term, short-term, and short-term scheduler.
What does it mean to block your knitting?
Blocking is
the process of wetting or steaming your final pieces of knitting to set the finished size and even out the stitches
. You could use any flat surface to block your garments (I’m partial to the Knitter’s Block), just be sure that your knitted piece lies flat and fully dries so that its shape sets.
What is the difference between buffering and blocking?
A buffering interface is of one of two types:
blocking routine or deblocking routine
. Buffering means when we running any application, OS loads that into the buffer(RAM). Blocking means OS will block some applications, which will do malicious operations, like corrupting the Registry.
