A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time applications that process data as it comes in, typically without buffer delays. Processing time requirements (including any OS delay) are measured in tenths of seconds or shorter increments of time. A real time system is a time bound system which has well defined fixed time constraints.
All of the following are TRUE regarding virtual memory EXCEPT
Any amount of RAM can be allocated to virtual memory. The setting for the amount of hard drive space to allocate to virtual memory can be manually changed. This temporary storage is called the swap file (or page file). Virtual memory is physical space on the hard drive.
The essential difference between an operating system like Linux and one like Windows is that
The essential difference between an operating system like Linux and one like Windows is that. Windows can run with an Intel processor, whereas Linux cannot. Linux is proprietary, whereas Windows is not.
The time taken by the dispatcher to stop one process and start another. The amount of time taken by the dispatcher to pause one process. and start another is called dispatch latency. The process of saving the state of a previously running process or thread. and loading the initial or previously saved state of a new process by the dispatcher. Dispatch latency is a time value.
An interrupt that occurs when a program requests data that is not currently in real memory. The interrupt triggers the operating system to fetch the data from a virtual memory and load it into RAM. An invalid page fault or page fault error occurs when the operating system cannot find the data in virtual memory.
Whenever you move a directory from one location to another
A computer's basic input/output system (BIOS) is a program that's stored in nonvolatile memory such as read-only memory (ROM) or flash memory, making it firmware. The BIOS (sometimes called ROM BIOS) is always the first program that executes when a computer is powered up.
Which of the following does not occur during the power-on-self-test (POST)?
The maximum size of a write file is limited to the amount of memory in your computer. Charles Babbage originated the concept of a programmable computer. In computers, a memory unit is used for the storage of data. Memory is mainly classified into Primary memory (RAM and ROM) and Secondary memory (hard drive, CD, etc.).
A Combo Box displays a text box combined with a List Box, which enables the user to select items from the list or enter a new value. The Dropdown Style property specifies whether the list is always displayed or whether the list is displayed in a drop-down.