INVITATION TO COMPUTER SCIENCE 6TH EDITION BY SCHNEIDER - TEST BANK

INVITATION TO COMPUTER SCIENCE 6TH EDITION BY SCHNEIDER – TEST BANK

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

Chapter 5: Computer Systems Organization

 

TRUE/FALSE

 

1. The branch of computer science that studies computers in terms of their major functional units and how they work is known as computer organization.

 

 

2. Both RAM and ROM are memory chips into which information has been prerecorded during manufacture.

 

 

3. Memory locations are stored in row major order.

 

 

4. As computers become faster, memory access speeds are keeping pace.

 

 

5. The principle of locality states that when the computer uses something, it will probably use it again very soon.

 

 

6. In a two-level memory hierarchy, when the computer needs a piece of information, it looks in RAM first, then cache memory.

 

 

7. Registers can be accessed much more quickly than random access memory.

 

 

8. The instructions that can be decoded and executed by the control unit of a computer are represented in machine language.

 

 

9. The set of all operations that can be executed by a processor is called its I/O set.

 

 

10. The Von Neumann bottleneck is the inability of the sequential one-instruction-at-a-time computer Von Neumann model to handle today’s large-scale problems.

 

 

MODIFIED TRUE/FALSE

 

1. The Memory Data Register contains the address of the cell being fetched or stored. _________________________

 

 

2. Examples of volatile storage are mass storage devices such as disks and tapes. _________________________

 

 

3. The sectors of a disk are placed in concentric circles called cells. _________________________

 

 

4. The normal mode of operation of a Von Neumann machine is sequential. _________________________

 

 

 

5. MIMD parallelism is a scalable architecture. _________________________

 

 

COMPLETION

 

1. Computer manufacturers use a standard cell size of eight ____________________.

 

 

2. In a direct access storage device, every unit of information has a unique ____________________.

 

 

3. The three parts of the ALU together are known as the ____________________.

 

 

 

4. Machines that use the simplified approach to designing instruction sets are known as ____________________ machines.

 

 

5. The first computer to achieve a speed of 1 million floating-point operations per second, 1 ____________________, was the Control Data 6600 in the mid-1960s.

 

 

MULTIPLE CHOICE

 

1. To understand how computers process information, we must study computers as collections of ____ that perform tasks such as information processing, information storage, computation, and data transfer functional units.

a.	data types	c.	hardware
b.	functional units	d.	memory units

 

 

 

2. The acronym ____ is frequently used to refer to the memory unit of a computer.

a.	ROM	c.	MDR
b.	CD	d.	RAM

 

 

 

3. There are ____ bytes in a gigabyte.

a.	210	c.	230
b.	220	d.	2100

 

 

 

4. In a ____, the original contents of the memory cell are unchanged.

a.	nondestructive fetch	c.	random access memory
b.	destructive store	d.	volatile storage

 

 

 

5. To solve the difficulty of scaling memory organization, memories are physically organized into a ____-dimensional organization.

a.	one	c.	three
b.	two	d.	multi

 

 

 

6. A cache is typically ____ times faster than RAM but much smaller.

a.	5 to 10	c.	20 to 30
b.	15 to 20	d.	25 to 30

 

 

 

7. The ____ are the devices that allow a computer system to communicate and interact with the outside world as well as store information.

a.	registers	c.	control units
b.	arithmetic/logic units	d.	input/output units

 

 

 

8. The ____ of a disk is the time needed to position the read/write head over the correct track.

a.	latency	c.	transfer speed
b.	frequency	d.	seek time

 

 

 

9. The ____ of a disk is the time for the beginning of the desired sector to rotate under the read/write head.

a.	latency	c.	frequency
b.	transfer time	d.	seek time

 

 

10. A(n) ____ handles the details of input/output and compensates for any speed differences between I/O devices and other parts of the computer.

a.	cache	c.	decoder circuit
b.	I/O register	d.	I/O controller

 

 

 

 

11. To alert the computer that an input/output operation is done, a(n) ____ is transmitted to the processor.

a.	condition code	c.	broadcast
b.	interrupt signal	d.	execution instruction

 

 

 

12. A(n) ____ is a storage cell that holds the operands of an arithmetic operation and that, when the operation is complete, holds its result.

a.	decoder	c.	I/O controller
b.	register	d.	cache

 

 

 

13. If a computer has a maximum of 2^N memory cells, then each address field in a machine language instruction must be ____ bits wide to enable us to address every cell.

a.	N	c.	N2
b.	2N	d.	2N

 

 

 

14. ____ machines are designed to directly provide a wide range of powerful features so that finished programs for these processors are shorter.

a.	MISC	c.	SISC
b.	SICC	d.	CISC

 

 

 

15. The ____ operation in Von Neumann machines uses a special set of bits known as condition codes.

a.	compare	c.	control
b.	addition	d.	looping

 

 

 

16. The ____ machine language instructions alter the normal sequential flow of control.

a.	data transfer	c.	branch
b.	arithmetic	d.	compare

 

 

 

17. It is the task of the ____ to fetch and execute instructions.

a.	arithmetic/logic unit (ALU)	c.	memory
b.	I/O controllers	d.	control unit

 

 

 

18. The ____ holds the address of the next instruction to be executed.

a.	status register	c.	condition register
b.	program counter	d.	instruction register

 

 

19. During the ____ phase, the control unit circuitry generates the necessary sequence of control signals and data transfer signals to the other units of the computer to carry out the instruction.

a.	fetch	c.	store
b.	execution	d.	decode

 

 

 

20. In the SIMD parallel processing model, the control unit ____ instructions to every ALU.

a.	broadcasts	c.	stores
b.	decodes	d.	encodes

 

 

 

SHORT ANSWER

 

1. What are the four major subsystems of the Von Neumann architecture?

 

 

 

2. Draw an analogy between cache memory and a home refrigerator.

 

 

 

3. What is the most fundamental characteristic of the Von Neumann architecture?

 

 

 

4. Other than clock speed, what is an accurate measure of machine speed?

 

 

 

5. What is cluster computing?

 

 

ESSAY

 

1. What is random access memory, and what are its three characteristics?

 

 

 

2. When a computer needs a piece of information, does it immediately perform the memory fetch operation? If not, what does it do?

 

 

 

3. Explain what a register is and how it differs from random access memory cells.

 

 

 

4. Explain at length what scalability means.

 

 

 

5. Describe at length what quantum computing is.