Variety of Processors

Question 1

Von Neumann Architecture = ___ are stored in memory the way data is stored.

Answer 1

programs

Question 2

Von Neumann Architecture has a ___ and a ___.

Answer 2

address bus, data bus

Question 3

The address bus and the data bus is used to ___.

Answer 3

transfer data from/to CPU, RAM, ROM and other devices

Question 4

CPU, RAM, ROM and other devices are detached to the bus.

True/False

Answer 4

False. They are all attached to the bus.

Question 5

Processors is a digital device that performs ___.

Answer 5

computation using multiple steps

Question 6

Name the type of processor:-
Least powerful, single operation.
A - Selectable logic
B - Fixed logic
C - Parameterized logic processor
D - Programmable logic processor

Answer 6

B - Fixed logic

Question 7

Name the type of processor:-
Performs > 1 operation.
A - Selectable logic
B - Fixed logic
C - Parameterized logic processor
D - Programmable logic processor

Answer 7

A - Selectable logic

Question 8

Name the type of processor:-
Accepts a set of parameters in the computation.
A - Selectable logic
B - Fixed logic
C - Parameterized logic processor
D - Programmable logic processor

Answer 8

C - Parameterized logic processor

Question 9

Name the type of processor:-
Greatest flexibility. Function to compute can be changed. 
CPU belongs to this type of processor.
A - Selectable logic
B - Fixed logic
C - Parameterized logic processor
D - Programmable logic processor

Answer 9

D - Programmable logic processor

Question 10

CPU = ?

Answer 10

Central Processing Unit

Question 11

Components of a CPU:- (5 items)
\_\_\_
\_\_\_ (ALU)
\_\_\_
Internal \_\_\_
External \_\_\_

Answer 11

Controller
Arithmetic and Logical Unit
Registers
Internal Interconnections
External Interface

Question 12

What is the function of controller?
A. Controls the execution
B. Initiates the sequence of steps
C. Coordinates other components
D. All of the above

Answer 12

D. All of the above

Question 13

ALU provides ___ operations. It performs ___ operation(s) at a time.

Answer 13

Arithmetic and boolean; one

Question 14

Registers are ___ storage.

Answer 14

Local data

Question 15

Registers hold ___ of the operation.

Answer 15

arguments and results

Question 16

Internal interconnections ___ across the components in the CPU.

Answer 16

transfer values

Question 17

External interface provides connections to ___ as well as ___ devices.

Answer 17

external memory; I/O

Question 18

Name the category of processor:-
Operates in conjunction with other processor.
A - General purpose processor
B - Microsequencer
C - Microcontroller
D - Coprocessor
E - Embedded System Processor

Answer 18

D - Coprocessor

Question 19

Name the category of processor:-
Small programmable device. Dedicated to control a physical system
A - General purpose processor
B - Microsequencer
C - Microcontroller
D - Coprocessor
E - Embedded System Processor

Answer 19

C - microcontroller

Question 20

Name the category of processor:-
Controls coprocessors, memory and other components inside a larger processor board.
A - General purpose processor
B - Microsequencer
C - Microcontroller
D - Coprocessor
E - Embedded System Processor

Answer 20

B - microsequencer

Question 21

Name the category of processor:-
Able to run sophisticated tasks. More powerful than a microcontroller. 
A - General purpose processor
B - Microsequencer
C - Microcontroller
D - Coprocessor
E - Embedded System Processor

Answer 21

E - Embedded System Processor

Question 22

Name the category of processor:-
Most powerful type of processor. Completely programmable. 
A - General purpose processor
B - Microsequencer
C - Microcontroller
D - Coprocessor
E - Embedded System Processor

Answer 22

A - general purpose processor

Question 23

General purpose processor is used to store ___.

Answer 23

operands and results

Question 24

Each register has a small size; __, __ or __ bytes.

Answer 24

1; 4; 8

Question 25

Floating point registers are special registers used to store ___.

Answer 25

floating point numbers

Question 26

Discrete Logic -

use ___ to implement processor. Could use multiple boxes and ___.

Answer 26

TTL gates; circuit boards

Question 27

___ ___ board - multiple chips/controllers in a single board

Answer 27

Single circuit board

Question 28

Single chip - all the components are in a ___.

Answer 28

single chip

Question 29

Fetch/Execute cycle allows ___.

Answer 29

moving through the program steps

Question 30

Complete below:-
while (1) {
\_\_\_ from memory the next \_\_\_ to execute in the program;
\_\_\_ this instruction
}

Answer 30

fetch; instruction; execute

Question 31

Clock rate = the rate at which ___ and ___ are clocked to synchronize ___.

Answer 31

gates; hardware components; data transfer

Question 32

Instruction rate = time required to ___.

Answer 32

execute an instruction

Question 33

Different instruction may take different times.

True/False

Answer 33

True

Question 34

When the CPU is powered on or when reset:-

1. The CPU is ___
2. The ___ cycle starts
3. The first instruction to execute will be in ___
4. This process is called ___

Answer 34

initialized; fetch-execute; a known memory location; bootstrap

Question 35

When the application finishes or it is waiting for an event, the program may enter ___.
This is often called ___ or ___.

Answer 35

an infinite loop; null process; system idle process

Question 36

Consideration for choosing an instruction set?
A. Physical size of the processor
B. How the processor will be used
C. Power consumption
D. All of the above

Answer 36

D. All of the above

Question 37

Opcode = specifies the ___ to be executed.

Answer 37

instruction

Question 38

Operands = specifies the ___, ___ or constants used in the instruction.

Answer 38

registers, memory location

Question 39

Result = specifies the ___ or ____ where the result of the operation will be placed.

Answer 39

registers, memory location

Question 40

Two types of instruction length:- ___ and ___.

Answer 40

Fixed length; variable length

Question 41

Which of the following is true for fixed length?
A. Each instruction has the same length
B. Increases the hardware complexity; runs slower

Answer 41

A,

Fixed length reduces hardware complexity; runs faster

Question 42

Which of the following is false for variable length?
A. Some instructions will take more space than others
B. Appealing to assembly code programmers
C. Less efficient use of memory
D. Pentium continues using variable length instructions because of backward-compatibility issues

Answer 42

C.

Variable length has more efficient use of memory

Question 43

Number of registers is limited, so it is necessary to use memory or the stack to store temporal values.
True/False

Answer 43

True

Question 44

Register allocation = choose what values to keep in the registers instead of ___.

Answer 44

memory

Question 45

Two types of instruction sets: ___ and ___.

Answer 45

CISC; RISC

Question 46

CISC = ?

Answer 46

Complex Instruction Set Computer

Question 47

RISC = ?

Answer 47

Reduced Instruction Set Computer

Question 48

CISC contains ___ instructions.

Some instructions take ___ than others.

Answer 48

many; longer

Question 49

RISC contains ___ instructions. They are ___ length and executed in __ clock cycle(s).

Answer 49

few; fixed; 1

Question 50

Match the system with RISC or CISC:-
Sparc
Alpha
x86
MIPS
ARM

Answer 50

Sparc, Alpha, MIPS, ARM - RISC

x86 - CISC

Question 51

The instruction set contains the following instructions:-
Move a range of byes from one place in memory to another
Compute the length of a string
Does this instruction set belong to CISC or RISC?

Answer 51

CISC