Test 2 CEA201

A _____ instruction can be used to account for data and branch delays.

• A. SUB
• B. NOOP
• C. JUMP
• D. all of the above

The predict-never-taken approach is the most popular of all the branch prediction methods.

• A. True
• B. False

A _____ is a high-definition video disk that can store 25 Gbytes on a single layer on a single side.

• A. DVD
• B. DVD-R
• C. DVD-RW
• D. Blu-ray DVD

The most important system program is the OS.

• A. True
• B. False

An I/O module that takes on most of the detailed processing burden, presenting a high-level interface to the processor, is usually referred to as an ____

• A. I/O channel
• B. I/O command
• C. I/O controller
• D. device controller

Computers are classified into generations based on the fundamental hardware technology employed.

• A. True
• B. False

"Memory is organized into records and access must be made in a specific linear sequence" is a description of ___

• A. sequential access
• B. direct access
• C. random access
• D. associative

Because all devices on a synchronous bus are tied to a fixed clock rate, the system cannot take advantage of advances in device performance.

• A. True
• B. False

_____ attributes include hardware details transparent to the programmer.

• A. Interface
• B. Organizational
• C. Memory
• D. Architectural

I/O channels are commonly seen on microcomputers, whereas I/O controllers are used on mainframes.

• A. True
• B. False