Introduction to Operating Systems (1-a)

An operating system is best described as:

"The one program running at all times on the computer" is the:

The BIOS, stored in ROM or EPROM, is generally known as:

How does a device controller inform the CPU that it has finished its operation?

A trap is:

A key advantage of Direct Memory Access (DMA) is that it generates:

Which storage can the CPU access directly?

Caching copies information:

Which multiprocessing advantage refers to graceful degradation / fault tolerance?

Privileged instructions can be executed only in:

The operating system is both a resource allocator and a control program.

In synchronous I/O, control returns to the user program immediately, without waiting for completion.

Secondary storage is nonvolatile, while main memory is volatile.

Caching copies information from faster storage into slower storage.

In timesharing systems, response time should be less than one second.

Incoming interrupts remain enabled while another interrupt is being processed.

Virtual memory allows execution of processes that are not completely in memory.

In symmetric multiprocessing (SMP), all processors are peers.

The mode bit lets the hardware distinguish user mode from kernel mode.

The timer is used so the OS can regain control from a process that runs too long.

Match each component of a computer system.

Match each I/O concept.

Match each term with its meaning.

Match each storage concept.

Match each multiprocessing advantage.