Exam 11: Operating Systems

____ scheduling chooses the next thread to be dispatched based on the expected amount of CPU time needed to complete the process.

The register holding the offset value in memory allocation is called a(n) ____________________ register.

Because page size is fixed, memory references can easily be converted to the corresponding page number and offset in the page.

​Describe the role of the operating system.

____ store information about page locations, allocated page frames, and secondary storage space.

A CPU's or computer's ____ is the highest numbered storage byte that can be represented.

The ____ of the OS contains thousands of reusable components that provide functions ranging from file and folder manipulation to accessing I/O devices, starting and stopping programs, and creating, moving, and resizing GUI windows.

The command layer of an OS is sometimes called the ____________________.

The ____ is the user interface to the OS.

A(n) ____________________ is a portion of a process that can be scheduled and executed independently.

The ____________________ layer encapsulates hardware resources, thus controlling and managing access by users and applications.

With an Intel CPU, virtual memory management responsibility is split between the CPU and the OS.

A computer system's ____________________ memory is the actual number of memory bytes that are physically installed in the machine.

The ____________________ layers of an OS provide services to application programs or directly to end users.

In virtual memory management, a ____ is a small fixed-size portion of a program, normally between 1 and 4 KB.

The benefits of advanced memory addressing and allocation schemes are offset by reduced performance when they're implemented in hardware.

A reference to a page held in memory is called a ____.

Intel Core CPUs implement virtual memory management tables in ____.

As allocated by the OS, the resources that are apparent to a program or user are called ____.

Data values and instructions generally occupy multiple bytes of storage.