Question 1

To access 16 MB (16,777,216) memory locations a processor requires 	_________,

Accepted Answer

A)  24- bit address bus 
B)  32- bit address bus 
C)  64- bit address bus 
D)  20- bit address bus 
A)  24- bit address bus 
B)  32- bit address bus 
C)  64- bit address bus 
D)  20- bit address bus

Question 2

During a write operation the processor places an address on the address bus and data on the data bus, and the device generates a write signal to indicate it has stored the data.

Accepted Answer

A) True 
 B)False

Question 3

All of the following are system bus types except _________.

Accepted Answer

A)  asynchronous 
B)  quasi- synchronous 
C)  semi- synchronous 
D)  synchronous 
A)  asynchronous 
B)  quasi- synchronous 
C)  semi- synchronous 
D)  synchronous

Question 4

General purpose processors typically have control lines with which to select system devices.

Accepted Answer

A) True 
 B)False

Question 5

The addressing mode that uses the second byte of the instruction to specify the operand is _________.

Accepted Answer

A)  extended addressing 
B)  absolute addressing 
C)  immediate addressing 
D)  literal addressing 
A)  extended addressing 
B)  absolute addressing 
C)  immediate addressing 
D)  literal addressing

Question 6

Operands are always one- byte values.

Accepted Answer

A) True 
 B)False

Question 7

One of the basic functional blocks of a microcomputer is the arithmetic logic unit.

Accepted Answer

A) True 
 B)False

Question 8

One important class of bus master is the DMA (direct memory access) controller.

Accepted Answer

A) True 
 B)False

Question 9

Multitasking differs from multiprocessing in that _________.

Accepted Answer

A)  multitasking can run multiple processes simultaneously 
B)  multiprocessing uses a single processor to run multiple processes 
C)  the CPU must alternate between running processes when multiprocessing 
D)  multitasking uses a single processor to run multiple processes 
A)  multitasking can run multiple processes simultaneously 
B)  multiprocessing uses a single processor to run multiple processes 
C)  the CPU must alternate between running processes when multiprocessing 
D)  multitasking uses a single processor to run multiple processes

Question 10

A bus master is any device in the computer system that can control the system buses.

Accepted Answer

A) True 
 B)False

Question 11

Polled I/O operation is periodic, inefficient, and generally allows no priority assignments.

Accepted Answer

A) True 
 B)False

Question 12

BIOS memory holds system- specific low- level code.

Accepted Answer

A) True 
 B)False

Question 13

The system bus consists of all of the following except 	_________.

Accepted Answer

A)  power bus 
B)  control bus 
C)  data bus 
D)  address bus 
A)  power bus 
B)  control bus 
C)  data bus 
D)  address bus

Question 14

Microcontrollers are a type of general purpose processor.

Accepted Answer

A) True 
 B)False

Question 15

DMA stands for _________.

Accepted Answer

A)  direct memory access, allowing memory operations to take place directly between certain I/O devices and memory which allows the CPU to continue its operation with minimum interruptions 
B)  direct multiple access, operations directly between the CPU and multiple I/O devices which speed up the computer system 
C)  direct memory access, operations that allow the CPU direct access to the memory of I/O devices 
D)  all of the above, depending on the system 
A)  direct memory access, allowing memory operations to take place directly between certain I/O devices and memory which allows the CPU to continue its operation with minimum interruptions 
B)  direct multiple access, operations directly between the CPU and multiple I/O devices which speed up the computer system 
C)  direct memory access, operations that allow the CPU direct access to the memory of I/O devices 
D)  all of the above, depending on the system

Question 16

When running a program a processor repeatedly executes a cycle that contains _________.

Accepted Answer

A)  a fetch phase 
B)  an instruction decode phase 
C)  a data write- back phase 
D)  none of the above 
A)  a fetch phase 
B)  an instruction decode phase 
C)  a data write- back phase 
D)  none of the above

Question 17

DMA allows the CPU to process data transfers between RAM and I/O devices faster by speeding up the CPU clock during operations that do not require the use of the ALU.

Accepted Answer

A) True 
 B)False

Question 18

Microcontroller peripherals typically require control registers to specify how the peripheral will function.

Accepted Answer

A) True 
 B)False

Question 19

Multiprocess or multiuser systems run in supervisor mode for all the following situations except_________.

Accepted Answer

A)  when powering up 
B)  when running application software 
C)  when running the operating system code 
D)  when servicing and interrupt or exception 
A)  when powering up 
B)  when running application software 
C)  when running the operating system code 
D)  when servicing and interrupt or exception

Question 20

Polling_________.

Accepted Answer

A)  requires the processor to periodically check each device to see which if any of them require servicing 
B)  is more efficient than interrupt- driven processor operation 
C)  has the processor operate normally until a device signals that it requires servicing 
D)  none of the above 
A)  requires the processor to periodically check each device to see which if any of them require servicing 
B)  is more efficient than interrupt- driven processor operation 
C)  has the processor operate normally until a device signals that it requires servicing 
D)  none of the above

To access 16 MB (16,777,216) memory locations a processor requires _________,

During a write operation the processor places an address on the address bus and data on the data bus, and the device generates a write signal to indicate it has stored the data.

All of the following are system bus types except _________.

General purpose processors typically have control lines with which to select system devices.

The addressing mode that uses the second byte of the instruction to specify the operand is _________.

Operands are always one- byte values.

One of the basic functional blocks of a microcomputer is the arithmetic logic unit.

One important class of bus master is the DMA (direct memory access) controller.

Multitasking differs from multiprocessing in that _________.

A bus master is any device in the computer system that can control the system buses.

Polled I/O operation is periodic, inefficient, and generally allows no priority assignments.

BIOS memory holds system- specific low- level code.

The system bus consists of all of the following except _________.

Microcontrollers are a type of general purpose processor.

DMA stands for _________.

When running a program a processor repeatedly executes a cycle that contains _________.

DMA allows the CPU to process data transfers between RAM and I/O devices faster by speeding up the CPU clock during operations that do not require the use of the ALU.

Microcontroller peripherals typically require control registers to specify how the peripheral will function.

Multiprocess or multiuser systems run in supervisor mode for all the following situations except_________.

Polling_________.

Introductory Concepts

Number Systems, Operations, and Codes

Logic Gates

Boolean Algebra and Logic Simplification

Combinational Logic Analysis

Functions of Combinational Logic

Latches, Flip-Flops, and Timers

Shift Registers

Counters

Programmable Logic

Data Storage

Signal Conversion and Processing

Data Transmission

Integrated Circuit Technologies

Filters

Exam 14: Data Processing and Control

To access 16 MB (16,777,216) memory locations a processor requires _________,

During a write operation the processor places an address on the address bus and data on the data bus, and the device generates a write signal to indicate it has stored the data.

All of the following are system bus types except _________.

General purpose processors typically have control lines with which to select system devices.

The addressing mode that uses the second byte of the instruction to specify the operand is _________.

Operands are always one- byte values.

One of the basic functional blocks of a microcomputer is the arithmetic logic unit.

One important class of bus master is the DMA (direct memory access) controller.

Multitasking differs from multiprocessing in that _________.

A bus master is any device in the computer system that can control the system buses.

Polled I/O operation is periodic, inefficient, and generally allows no priority assignments.

BIOS memory holds system- specific low- level code.

The system bus consists of all of the following except _________.

Microcontrollers are a type of general purpose processor.

DMA stands for _________.

When running a program a processor repeatedly executes a cycle that contains _________.

DMA allows the CPU to process data transfers between RAM and I/O devices faster by speeding up the CPU clock during operations that do not require the use of the ALU.

Microcontroller peripherals typically require control registers to specify how the peripheral will function.

Multiprocess or multiuser systems run in supervisor mode for all the following situations except_________.

Polling_________.

Introductory Concepts

Number Systems, Operations, and Codes

Logic Gates

Boolean Algebra and Logic Simplification

Combinational Logic Analysis

Functions of Combinational Logic

Latches, Flip-Flops, and Timers

Shift Registers

Counters

Programmable Logic

Data Storage

Signal Conversion and Processing

Data Transmission

Integrated Circuit Technologies

Filters