Table of Contents
What is it called when a printer receives a command?
When a printer receives a command, it generates a unique signal to the OS, which is called a(n) Interrupt. The C: drive on a Windows PC is like a large filing cabinet, and is referred to as the. Root Directory.
What device would use a real time operating system?
General-Purpose Operating System (GPOS) is used for desktop PC and laptop while Real-Time Operating System (RTOS) only applied to the embedded application. Real-time systems are used in Airlines reservation system, Air traffic control system,etc.
What is it called when an OS processes tasks in a priority order?
preemptive multitasking. When an OS processes tasks in a priority order, it is known as. Root directory.
Which of these steps comes first in the boot process quizlet?
What is the first step in the boot process? – The BIOS loads the operating system into RAM. – The BIOS makes sure that all your computer’s peripheral devices are attached and working. – The BIOS verifies your login name and password.
What is impact printer?
Impact printers are printers which works by creating a direct contact between ink ribbon and paper. These printers are noisy yet popular. Impact printers have mechanical moving parts to conduct printing. Examples: Dot-matrix printers, Daisy-wheel printers, and line printers.
Which of the following printers is considered an impact printer?
Common examples of impact printers include dot matrix, daisy-wheel printers, and ball printers. Dot matrix printers work by striking a grid of pins against a ribbon. Different characters are printed by using different pin combinations.
What is the main function of the command interpreter?
The main function of the command interpreter is to get and execute the next user-specified command. When a command is typed, the shell forks off a new process. This child process must execute the user command.
Why RTOS is required?
A RTOS separates the program functions into self-contained tasks and implements an on-demand scheduling of their execution. Task scheduling – tasks are called when needed ensuring better program flow and event response. Multitasking – task scheduling gives the illusion of executing a number of tasks simultaneously.
What is a real time operating system give examples of it?
Examples of the real-time operating systems: Airline traffic control systems, Command Control Systems, Airlines reservation system, Heart Peacemaker, Network Multimedia Systems, Robot etc. Hard Real-Time operating system: These operating systems guarantee that critical tasks be completed within a range of time.
Which of the following is an example of a command driven interface?
An example of a common command driven interface is MS-DOS.
What is a device driver and what does it do?
A driver, or device driver, is a set of files that tells a piece of hardware how to function by communicating with a computer’s operating system. All pieces of hardware require a driver, from your internal computer components, such as your graphics card, to your external peripherals, like a printer.
What do you mean by device driver?
In computing, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer or automaton. They usually provide the interrupt handling required for any necessary asynchronous time-dependent hardware interface.
What are the 4 stages of the boot process?
The booting process takes the following 4 steps that we will discuss in greater detail: BIOS Integrity check (POST) Loading of the Boot loader (GRUB2) Kernel initialization. Starting systemd, the parent of all processes.
Which of these steps comes first in boot process?
The first step of any boot process is applying power to the machine. When the user turns a computer on, a series of events begins that ends when the operating system gets control from the boot process and the user is free to work.
When using a computer a list of commands or options that can be selected is called a?
list box. a box that displays a list of options from which you can select (you man need to adjust your view to see additional settings in the list box) command button. a button that completes or completes an operation.
Is inkjet printer an impact printer?
It is a type of printer that does not hit or impact a ribbon to print. They used laser, xerographic, electrostatic, chemical and inkjet technologies.Difference between Impact and Non-Impact Printers: Impact Printer Non Impact Printer Dot-matrix printer, Daisy wheel printers, line printer are examples . inkjet printers, photo printers, laser printers are examples .
Why is an impact printer called so?
Early printers, such as dot matrix and daisywheel printers were called impact printers, since they operated by striking an ink ribbon against the paper. The low impact nature of inkjet and laser printers also means they are less likely to need maintenance or repairs than earlier impact printers.
What do you mean by printer What is the difference between impact and non impact printer explain it?
Impact printers form images and characters by striking a mechanism such as a print hammer or wheel against an inked ribbon, leaving an image on paper. Non-impact printers form characters and images without direct physical contact between the printing mechanism and the paper.
What are impact printers give any two examples?
Ball printers, Dot-matrix, Daisy wheel printers, Line printers, Drum printers, and Chain printers are some examples of Impact Printers.
What are the two main types of impact printers?
The two most common forms of impact printers are dot-matrix and daisy-wheel.
What allows a computer to communicate with a printer?
Printer drivers are software applications that help your computer communicate with the printer. Even if you installed your printer driver off the disk that came with your printer, changes in your computer configuration or operating system can sometimes keep these drivers from working properly.
Where is the command interpreter?
A command interpreter is the part of a computer operating system that understands and executes commands that are entered interactively by a human being or from a program. In some operating systems, the command interpreter is called the shell.
What else is a command interpreter called?
A command interpreter is often also called a command shell or simply a shell. A command shell also usually provides a set of programs or utilities which allows users to perform file management functions. Nowadays, most of the operating system provides a GUI shell.
What is another common name of a command interpreter?
Other Names for a Command Line Interpreter Any command line interpreter program is also often referred to in general as a command line interface. Less commonly, it’s also called a CLI, command language interpreter, console user interface, command processor, shell, command line shell, or a command interpreter.
What is the difference between OS and RTOS?
In general, an operating system (OS) is responsible for managing the hardware resources of a computer and hosting applications that run on the computer. An RTOS performs these tasks, but is also specially designed to run applications with very precise timing and a high degree of reliability.
What Posix means?
POSIX (Portable Operating System Interface) is a set of standard operating system interfaces based on the Unix operating system.
Which tool allows a user to simulate scheduling in RTOS?
VxWorks is open source tool. might be it helpful.
