Evolution of Operating Systems and Web-Enabled Devices

What are the disadvantages of implementing an operating system in a higher-level language?

Reduced speed and increased storage requirements

Describe the structure of MS-DOS.

MS-DOS lacks well-separated interfaces and levels of functionality, allowing application programs to directly access basic I/O routines.

What are the two separable parts of the UNIX OS?

The kernel and the system programs

Explain the concept of layered approach in operating system design.

The layered approach involves breaking the OS into multiple layers, where each layer relies on the services provided by the layer below it. Signup and view all the answers

What is the advantage of the layered approach in operating system design?

Simplicity of construction and debugging Signup and view all the answers

What functions does the kernel of UNIX provide through system calls?

File system, CPU scheduling, memory management, and other operating-system functions Signup and view all the answers

What are the various types of user interfaces provided by an operating system?

Command Line Interface (CLI), Batch interface, and Graphical User Interface (GUI) Signup and view all the answers

How do users issue commands in a Command Line Interface (CLI)?

Commands are given directly to the system. Signup and view all the answers

Explain how a Batch interface works in an operating system.

Commands and directives to control these commands are put in a file, which is then executed. Signup and view all the answers

What is the purpose of a Graphical User Interface (GUI) in an operating system?

To provide windows with pointing devices for inputs and keyboards for text entry. Signup and view all the answers

Why is it important for the goals of a new operating system to be well defined before its design begins?

The goals form the basis for choices among various algorithms and strategies. Signup and view all the answers

How has the evolution of operating systems impacted their ability to act as web servers?

From acting solely as web clients, operating systems like Linux and Windows XP can now act as web servers as well. Signup and view all the answers

In what ways does an operating system provide an environment for the execution of programs?

By offering services to programs and their users. Signup and view all the answers

What services do operating systems provide for the efficient operation of the system?

Resource allocation, accounting, protection, and security Signup and view all the answers

Why is protection important in a multiuser or networked computer system?

To control the use of information and prevent interference among processes Signup and view all the answers

What is the purpose of accounting services in an operating system?

To keep track of system activity and resource usage Signup and view all the answers

How do users interface with the operating system using a command-line interface?

By directly entering commands to be performed by the OS Signup and view all the answers

What is the role of command interpreters in giving commands to the OS?

Command interpreters are used to give commands to the OS Signup and view all the answers

Why is security important in an operating system?

To control access to system resources and protect the system from outsiders Signup and view all the answers