Exam 6: System Integration and Performance

The ____________________ distributes electrical power to directly attached devices or their device controllers.

Devices attached to a system bus coordinate and synchronize their activities with a common ____.

The ____ states that when multiple resources are required to produce something useful, adding more of a single resource produces fewer benefits.

The latest trend in high-performance CPU design embeds multiple CPUs and cache memory on a single chip-an approach called ____.

When three cache levels are in use, the cache closest to the CPU is called a ____ cache.

Computer system components coordinate their activities by sending signals over the ____________________.

Most compression algorithms have a corresponding ____________________ algorithm that restores compressed data to its original or nearly original state.

In most computers, an I/O port is a ____.

Lossless compression ratios higher than 50:1 are difficult or impossible to achieve with audio and video data.

Under direct memory access, a device called a ____ is attached to the bus and to main memory.

The main goal of buffering and caching is to ____.

When a read operation accesses data already contained in the cache, the access is called a(n) ____________________.

The CPU communicates with a peripheral device by moving data to or from an I/O port's dedicated bus.

Reducing the size of stored or transmitted data can improve performance whenever there's a dearth of processing power.

In a ____, any device can assume control of the bus or act as a bus master for transfers to any other device.

A cache miss requires performing a(n) ____________________ to or from the storage device.

The ____________________ bus improves computer system performance by removing video traffic from the system bus and providing a high-capacity one-way communication channel optimized for video data.

____ is a technique that reduces the number of bits used to encode data, such as a file or a stream of video images transmitted across the Internet.

With serial communication lines in a bus, each line carries only one bit value or signal at a time, and many lines are required to carry data, address, and control bits.

With ____ compression, data inputs that are compressed and then decompressed are different from, but still similar to, the original input.