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The portion of the operating system that remains in main memory during system operation?
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∙ 11y ago
The Kernel
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∙ 11y ago
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When did the battle operation Barbarossa happen?
Operation Barbarossa wasn't a Battle, their was many battles which happened during Operation Barbarossa, Operation Barbarossa started on 22nd June 1941.
What is the beginning of the operating system?
I cannot tell what your asking by the question. The first commercial sold Operating System was the EXEC series by UNIVACThe blue screen that appears when you press F(something) during the start up of your computer is called the System BIOS.
What is the first generation of operating system?
First generation of operating systems were developed around early 50s to meet the hardware evolution of the time. During this period, the mode of operation was called closed shop where operators would select , run jobs and select another jobs. Later, a development of mono-programmed OS which eliminated some of the human intervention in running jobs came into play as systems were designed to be operated as batch processing system. The inherent problems with the first generation were inefficient use of system resources ( which was evident in slow CPU performance) and system protection.
Characteristics of real time operating system?
The unique requirements of real-time operating systems can be characterized by five general areas and are discussed below:Determinism: Determinism is concerned with the time it takes, delay time, for an operating system to acknowledge an interrupt. An operating system is deterministic to the extent in that the performance of operations are at fixed, predetermined times or within predetermined time intervals.Responsiveness: Responsiveness is concerned with the time an operating system services an interrupt once an acknowledgement is received. There are three aspects of responsiveness which include the following:1) The time required to initially handle the interrupt and being execution of the interrupt service routine (ISR).2) The time required to perform the ISR which is generally dependent on the hardware platform.3) Since an interrupt can be affected by the arrival of another interrupt the nesting effect is of interest.User control: In real-time operating systems, the users have find-grained control over scheduling task priority. The user must have a complete understanding between hard and soft tasks and to specify relative priorities within each class. Several characteristics may be available for the user to specify in these systems, such as, the use of paging or process swapping, what processes must always be resident in main memory, what disk transfer algorithms are to be used, the various processes' priority bands, etc.Reliability: In comparison to non-real-time operating systems, reliability of real-time operating systems is far more important since the system is responding to and controlling events in real time. Performance degradation or loss thereof may have catastrophic consequences, ranging from financial loss to major equipment damage and even loss of life. Non-real-time systems include, but not limited to, transient failure and processor failure in a multiprocessor system.Fail-soft operation: The characterization of Fail-soft operation refers to the ability of a system to fail in such a way as to preserve as much capability and data as possible. In a real-time system, the system attempts to correct the problem or minimize its effects while continuing to run. Stability is an important aspect of fail-soft operation, and an example of stability is provided for clarity purposes. In cases where it is impossible to meet all task deadlines, the real-time system remains stable while meeting the most critical, highest-priority tasks even if some of the less critical task deadlines are not met. The following features are usually included in real-time operation systems: fast process or thread switch, small size, ability to respond to external interrupts quickly, multitasking with interprocess communication tools such as semaphores, signals, and events, use of special sequential files that can accumulate date at a safe rate, preemptive scheduling based on priority, minimization of intervals during which interrupts are disabled, primitives to delay tasks for a fixed amount of time and to pause/resume tasks, special alarms and time-outs, etc.
What is a theater orderly?
Main Duties and Responsibilities : 1. Escorting patients to and from Theatres in a safe and timely manner. 2. Assisting in moving patients from beds to operating tables pre-operatively and helping to position patients as requested after anaesthetic and prior to surgery. 3. Have correct operating table prepared for specialised operation e.g. Hip replacement including supports clamps etc. 4. Assisting in putting patients back to bed post-operatively. 5. Mopping floors, changing floor bowls, cleaning Theatre equipment e.g. suction machines between operations. 6. Tidying scrub-up rooms between operating cases. 7. Helping to move special Theatre equipment if required during Theatre list e.g. x-ray machines including image intensifier. 8. Preparing patients trolleys and cleaning operating tables during lists 9. Cleaning theatre, anaesthetic room, scrub up, prep room and sluice after operating list, including walls, floors and furniture, sinks, lights, doors, etc. 10. Change gas cylinders when necessary and ensure adequate stock maintained. 11. General cleaning within the department e.g. ancillary rooms, changing rooms, coffee rooms, walls, corridors etc. 12. Providing messenger service within department 13. Cleaning and caring in general way of Theatre equipment e.g. operating lights, x-ray machines, operating tables and table accessories etc. 14. Assisting with putting away laundry, collecting scones etc. and any other duties as required.
What are three possible causes of a noisy bearing during clutch operation?
is minor pulsation a normal condition in typical clutch operation. Operating the clutch should always be a smooth operation. If not, something is wearing out.
What does diagnostic code P1281 mean on a jeep wrangler?
P1281 means the engine coolant temperature remains below normal during operation. Could be the thermostat.
How many personnel are there in a Sea Echelon?
A portion of the assault shipping which withdraws from, or remains out of, the transport area during an amphibious landing and operates in designated areas to seaward in an on-call or unscheduled status
What does the error codes 17 and 25 mean on a 91 dodge spirit?
code 17.. engine is cold to long.Engine coolant temp remains below normal operating temp during operation.(check the thermostat)....................... Code 25....Automatic idle speed (AIS) motor(s) indicate a shorted condition detected in one or more of the circuits. check the circuits..
What is the operation of product?
A production operator is also known as a chemical equipment operator. His responsibilities include operating equipment that controls chemical reactions during the processing of various products for sale.
How many soldiers were injured during Operation Barbarossa?
3,542,837 Soldiers were wounded during Operation Barbarossa.
Is Jack in the Box open new years day?
Jack in the Box remains open during New Year's Eve and Day. The restaurant will have limited hours during the New Year's holiday and hours of operation may vary depending on location.
During normal operation what does ram contain?
During normal operation, there are several possible things RAM can contain. The most accepted answer is likely the programs you are currently running. However, RAM also contains the operating system. In addition, unused RAM likely contains random data and perhaps some data from programs that were previously running in that session.
Working principal type description operation of shaping machine?
there are two stroke include in this forward stroke &return stroke during the forward stroke machine works means it removes the material from workpiece & during the return stroke machine remains idle
What happens during a bypass operation?
during a bypass operation there will be a secondery pipe that pushes the blood that is stopped by clots in the veins
What does CPU do when there is no program running?
The CPU will always do processing. Even though there are no application programs running, the operating system is still running and the CPU will still have to process many system processes during the operation of the computer.
Which molecule remains in the nucleus during protein synthesis?
DNA remains in nucleus .
