Operating Systems

Advantages are that you can do many things at once. Disadvantages are that your system will run more slowly with all of the tasks.

PCB stands for Process Control Block, and TCB stands for Task Context Buffer.

Both of them represent a buffer/array which stores values holded by various registers like Stack Pointer(SP), Program Counter(PC), and other variables while task switching takes place.

-> memory management

-> catching

-> pooling

1.dedicated

2.shared

3.virtual

4.spooling

5.channels

6.control unit

Yes, you can. You can run Linux and windows using a boot manager called grub. You can also do this on a mac. Grub allows you to run multiple systems on one machine, although it can be confusing to install for the basic user.

The main difficulty is keeping the operating system within the fixed time constraints of a real-time system. If the system does not complete a task in a certain time frame, it may cause a breakdown of the entire system it is running. Therefore when writing an operating system for a real-time system, the writer must be sure that his scheduling schemes don't allow response time to exceed the time constraint.

If you use original tally software this problem will not come it will come only in pirated version.

JP NARAYAN

multiuser operating systems allows the multiple users to access the resources of a single systems at a time or at different time. allows many users to take advantage of the computer's resources simultaneously. some permit 100's to 1000 users to take advantage of the computer's resources simultaneously.

they are successful because of the powerful, efficient, stable and secure operating systems like LINUX. it has a capability of providing each user the same data ensuring total privacy from each user even while accessed by 100's of users simultaneously.

when several processes can use a device at the same time then those devices are termed as shared devices.

Ancient Greeks

If I was designing a program for a computer that I do not have only a virtual machine would allow me to do that. That, as a programer, means I can not only design but test software for a mainframe computer or a cloud network without having the expense of owning the real machine.

As a user it means that all possible answers, problems, and fail over situations have already been found and fixed before the software goes commercial / live.

dual boot allows you to install the new OS without disturbing the old one so you can boot to either OS.

It merely controls resources. Both hardware and software. Acting as a layer of Abstraction between the User.

An operating system is a software which performs all thr basic tasks like file management, memory management,process management, handling input and output,and controlling periphral devices such as disk drives and printersAn operating system is a software which performs all thr basic tasks like file management, memory management,process management, handling input and output,and controlling periphral devices such as disk drives and printers

the macintosh operating systems is more user-friendly

Here are five of my hand-picked wireframing tools for Mac to get you started.

1. Axure

In terms of prototyping tools, Axure should be one of the most popular ones. It's well-known that Axure is a powerful wireframing tool that is equipped with a variety of functions, such as wireframe, flow chart, and interaction design.

2. Sketch

As a professional wireframe tool for Mac, Sketch aims to improve the design efficiency for designers. It’s convenient to edit content. You can achieve the commonly used function by a key. It is suitable for lightweight design, like drawing a wireframe.

3. Mockplus

Mockplus for Mac is a concise and rapid prototype design tool. Mockplus is very easy to use. Even the novice can quickly make a prototype. Its unique sketch style and low fidelity coincide with the features of the wireframe.

4. OmniGraffle

OmniGraffle is a drawing tool that is only suitable for Apple Devices. All kinds of chart is a piece of cake for it. Designers can make a good wireframe with its rich template.

5. Balsamiq Mockups

Balsamiq Mockups is one of the wireframe tools for Mac. It not only includes a lot of drag elements but also achieves automatic alignment. It also can export PNG pictures and insert any projects. The whole interface is very simple and clean.

Hopefully, this is helpful.

various CPU registers where process need to be stored for execution for running state.

process priority and other scheduling information which is required to schedule the information of page table.

memory limits

segment table depending on the memory used by the operating system

A real-time operating system (RTOS)[Generally pronounced as: Or-tos] is a multitasking operating system intended for real-time applications. Such applications include embedded systems (programmable thermostats, household appliance controllers, mobile telephones), industrial robots, spacecraft, industrial control (see SCADA), and scientific research equipment. An RTOS facilitates the creation of a real-time system, but does not guarantee the final result will be real-time; this requires correct development of the software. An RTOS does not necessarily have high throughput; rather, an RTOS provides facilities which, if used properly, guarantee deadlines can be met generally (soft real-time) or deterministically (hard real-time). An RTOS will typically use specialized scheduling algorithms in order to provide the real-time developer with the tools necessary to produce deterministic behavior in the final system. An RTOS is valued more for how quickly and/or predictably it can respond to a particular event than for the given amount of work it can perform over time. Key factors in an RTOS are therefore a minimal interrupt latency and a minimal thread switching latency. An early example of a large-scale real-time operating system was Transaction Processing Facility developed by American Airlines and IBM for the Sabre Airline Reservations System.

What are the functions of microcomputer operating system?

Most common operating systems are proprietary. This means that only a limited number of applications can operate on them. This has a tendency to limit productivity.

An operating system is responsible for carrying out a number of functions to enable the user and the software to interact with the hardware.Different functions are essential to operate computer system efficiently.

software generated interrupt caused either by an error or

a user request.

What are the advantages and disadvantages of OS2?

No.

It is easier to alter shell when it is not part of the operating system.

Answer: its easier but the real answer is shell is not part of Operating system as it is command prompt use to operate operating system and its part of disk operating system