Which of the following is part of the fourth stage of the FDE cycle?

opcode used 2 determine type of instruction & hardware 2 use

What does the Bus Request command do?

Indicates that a device is requesting the use of data bus

Which of the following is part of the fourth stage of the FDE cycle?

The instruction held in the CIR is decoded

Which is the 3rd step of the FDE cycle?

The contents of the MDR are copied to the CIR

What does the MDR do?

holds the data read from or written to memory temporarily

What does the ALU do?

Performs arithmetic and logic operations on the data

What is an I/O controller?

the connection and control of input and output devices

What does the Address bus do?

Transmits the memory addresses to the processor

What is a bus in computing terms?

A set of parallel wires connecting two or more components

What is the purpose of the Control Unit?

To control and coordinate the activities of the CPU

What does the command Interrupt request do

indicates that a device is requesting access to the CPU

What happens when an instruction has been executed?

the result is stored at a particular memory location

What is the Fetch-Decode-Execute Cycle?

sequence of operations involved in executing an instruction

Which of the below is a function of the CU?

To control the FDE cycle between CPU components

What components are within the CPU?

CU, buses, ALU and dedicated registers

What does the term bi-directional bus mean?

Signals can be carried in both directions

What does the MAR do?

holds the address of the data which is to be fetched

Which of the following is part of the fourth stage of the FDE cycle?

The instruction is split into opcode and operand

What does the command Memory Read do?

causes data from the location to be placed on the data bus

Which of the following is the final stage of the FDE cycle?

appropriate instruction/opcode is carried out on the operand

What does it mean when each bus is a shared transmission medium?

Only one device can transmit along a bus at any one time

Why are words used as operands in program instructions?

the data can be retrieved and sent back to the processor

What does the command Memory Write do?

causes data on the data bus to be written into the location

Which is the first step of the Fetch-Decode-Execute cycle?

Address of the next instruction is copied from PC to the MAR

What does the command Bus Grant do?

indicates that the CPU has granted access to the data bus

Special memory cells that operate at very high speed

Which operations are performed by the ALU?

Boolean Logic, Shift operations, ADD, SUBTRACT, MULTIPLY, DIVIDE on fixed & floating point No

What does the CIR do?

holds the current instruction being executed

What does the CPU do?

Executes instructions through the FDE cycle

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Processor Components

60 termsStudBud Administration230 plays

A Computer Science quiz for the Processor Components Section

Flashcards60 cardsFPractice quizPHost liveL

Questions 60

Answers

1
Which of the following is part of the fourth stage of the FDE cycle?
PC is incremented
address is copied to MAR
opcode used 2 determine type of instruction & hardware 2 use
appropriate instruction/opcode is carried out on the operand
2
What does the Bus Request command do?
causes data on the data bus to be written into the location
indicates that the CPU has granted access to the data bus
Indicates that a device is requesting the use of data bus
causes data from the location to be placed on the data bus
3
What does the control line command clock do?
used to synchronise operations
indicates that a device is requesting access to the CPU
4
Which of the following is part of the fourth stage of the FDE cycle?
The instruction held in the address is copied to the MDR
The contents of the MDR are copied to the CIR
appropriate instruction/opcode is carried out on the operand
The instruction held in the CIR is decoded
5
What does the acronym CIR stand for?
Current Instruction Register
Control Information Rapid
Current Information Register
Control Instruction Register
6
Which bus can only communicate signals one way?
Data Bus
Address Bus
Memory Bus
Control Bus
7
Which is the 3rd step of the FDE cycle?
the data to be operated may be passed to the ALU/ACC
The contents of the MDR are copied to the CIR
appropriate instruction/opcode is carried out on the operand
the actual data to be operated on
8
What does the acronym CPU stand for?
Computer Processing Unit
Control Processing Unit
Central Processing Unit
Current Program Unit
9
What are the control, address and data buses collectively known as?
System bus
Memory bus
Processor bus
Computer bus
10
What does the MDR do?
holds the current instruction being executed
holds the calculations made by the ALU
holds the address of data which is to be fetched
holds the data read from or written to memory temporarily
11
What does the ALU do?
Performs arithmetic and logic operations on the data
Hold the current instruction being executed
Holds the address of the next instruction to be executed
Used to temporarily store the data read written to memory
12
What is an I/O controller?
the connection and control of input and output devices
Stores calculations made by the ALU
Stores recently accessed data
Stores the address of data which is to be fetched
13
What is memory divided up internally into?
Floats
Numbers
Words
Letters
14
Each word in memory has its own...
specific function
specific command
specific identity
specific address
15
What does the Address bus do?
Commands components within the CPU
Provides a bi-directional path for data
Stores the number of programs executed by the CPU
Transmits the memory addresses to the processor
16
What is a bus in computing terms?
A way of communicating with other computers
Transportation of information to a router
A mode of public transport
A set of parallel wires connecting two or more components
17
Where is the address of memory sent when the CPU requests to access it?
Data Bus
Memory Bus
Address Bus
Control Bus
18
What is the purpose of the Control Unit?
to store calculations made by the ALU
store the address of an instruction which is to be executed
To control and coordinate the activities of the CPU
To control operations handled through the operating system.
19
What does the command Interrupt request do
used to synchronise operations
indicates that a device is requesting access to the CPU
causes data from the location to be placed on the data bus
indicates that a device is requesting the use of the databus
20
What happens when an instruction has been executed?
the result is stored at a particular memory location
the instruction will request access to the CPU
the instruction will be fetched
the instruction will be decoded
21
What is the Fetch-Decode-Execute Cycle?
the cycle of recycling
commands system buses on their operations
controls the CPU
sequence of operations involved in executing an instruction
22
What does the accumulator take the place of?
general purpose registers
Control Unit
ALU
CPU
23
What does the acronym MAR stand for?
Memory Address Register
Mathematical Accumulation Register
Mathematical Address Register
Memory Addition Register
24
How many registers are usually in a CPU?
4
16
5
15
25
Which of the below is a function of the CU?
To bootstrap the OS
To store cache data
To create a virtual machine
To control the FDE cycle between CPU components
26
What does the acronym ALU stand for?
Addition-Logic Unit
Addition-Locus Unit
Arithmetic-Logic Unit
Arithmetic-Logarithmic Unit
27
What components are within the CPU?
GPU, CU, buses, dedicated registers
RAM, ROM, CU, Buses
CU, buses, ALU and RAM
CU, buses, ALU and dedicated registers
28
What does the acronym PC stand for?
Program Counter
Personal Computer
Processing Computer
Program Controller
29
What does the term bi-directional bus mean?
Signals can be carried in one direction
Signals can be carried in both directions
30
What does the MAR do?
Holds calculations made by the ALU
holds the address of the data which is to be fetched
holds the data read from or written to memory
holds the amount of programs executed
31
Which of the following is part of the fourth stage of the FDE cycle?
fetching
appropriate instruction/opcode is carried out on the operand
execution
The instruction is split into opcode and operand
32
What does the command Memory Read do?
indicates that a device is requesting access to the CPU
causes data from the location to be placed on the data bus
causes data on the data bus to be written into the location
used to synchronise operations
33
Which of the following is the final stage of the FDE cycle?
Address of next instruction copied from PC to MAR
PC is incremented
Contents of the MDR copied to the CIR
appropriate instruction/opcode is carried out on the operand
34
What does it mean when each bus is a shared transmission medium?
Only one device can transmit along a bus at any one time
Buses can simultaneously communicate with the processor
Buses can access information automatically from the web
Devices can transmit multiple times through buses
35
Which two buses can travel in both directions between the processor,memory and I/O controllers?
None of the buses can
Control Bus and Data Bus
Address Bus and Data Bus
Address Bus and Control Bus
36
What sizes are words typically?
16, 32 or 64 bits
Any size
16, 23 or 64 tb
16, 32 or 64kg
37
Where is the data sent along when the CPU requests access to data in the main memory?
Control Bus
Memory Bus
Data Bus
Address Bus
38
Why are words used as operands in program instructions?
to synchronise operations
the data can be retrieved and sent back to the processor
to request access to the CPU
so that words can be given a specific address
39
What does the command Memory Write do?
causes data on the data bus to be written into the location
indicates that the CPU has granted access to the data bus
used to synchronise operations
indicates that a device is requesting access to the CPU
40
Which is the first step of the Fetch-Decode-Execute cycle?
Contents of MDR are copied to the CIR
Instruction held at the address is copied to the MDR
PC incremented so that it holds address of next instruction
Address of the next instruction is copied from PC to the MAR
41
What does the acronym MDR stand for?
Memory Development Register
Mathematical Data Register
Memory Data Rapid
Memory Data Register
42
What does the command Bus Grant do?
used to synchronise operations
Indicates that a device is requesting access to the CPU
indicates that the CPU has granted access to the address bus
indicates that the CPU has granted access to the data bus
43
What is a register?
Used to log who's present at school
Controls the CPU
Special memory cells that operate at very high speed
Used to calculate the amount of cash is to be exchanged
44
What is a word in computing terms?
A phonetic sound which is spoken and written
A fixed size group of digits
45
Which operations are performed by the ALU?
Boolean Logic
Shift operations
Modulus and Quotient
ADD, SUBTRACT, MULTIPLY, DIVIDE on fixed & floating point No
46
What does the CIR do?
holds calculations made by the ALU
commands the CPU
holds the address of the memory location
holds the current instruction being executed
47
Which two buses are shared by all components of the system?
Control and Memory
Address and Data
Control and Data
Address and Control
48
How many parallel lines does a bus usually consist of?
3, 5, 7, 9
1208, 2412, 4824, 9648
8, 16, 32, 64
3, 9, 54, 79
49
What does the CPU do?
Reads disks
Executes instructions through the FDE cycle
The power source for the computer
Allows you to access the internet
50
What are words used as in program instructions?
Operands
Inputs
Outputs
Words
51
How many phases are in the FDE cycle?
3
4
7
6
52
What does the Program Counter do?
Holds the number of instructions that have been executed
used to temporarily store data read from memory
Holds the address of the next instruction to be executed
Holds the calculations made by the ALU
53
Where are all calculations made by the ALU stored?
CIR
MDR
MAR
Accumulator
54
In the fourth stage of the FDE cycle, what can the operand hold?
Data to be operated on may be passed to the ALU/Accumulator
appropriate instruction/opcode is carried out on the operand
Actual data to be operated on, copied to MDR
Address of the data to be used with operation copied to MAR
55
How many buses connect the processor to the main memory?
4
1
3
2
56
Which bus carries control signals?
Control Bus
Data Bus
Memory Bus
Address Bus
57
What does the Data bus do?
a one directional path for moving data between components
a bi-directional path for moving data between CPU components
58
What do control lines ensure?
That data and address lines do conflict
Access to & use of the data &address buses do not conflict
59
Which 3 functions are the main purpose of the control bus?
Timing, storage and command
Transmit command, timing and specific status information
Timing, specific status information and storing data
Transmit command, store the address and data
60
There are 2 answers which make up the second step of the FDE cycle. Which is one of them?
The data to be operated on may be passed to the ALU
The instruction held at that address is copied to the MDR
content of PC is incremented so it can hold next instruction
Address of next instruction is copied from PC to MAR

Processor Components Flashcards | StudBud

Processor Components

60 termsStudBud Administration230 plays

A Computer Science quiz for the Processor Components Section

Flashcards60 cardsFPractice quizPHost liveL

Questions 60

Answers

1
Which of the following is part of the fourth stage of the FDE cycle?
PC is incremented
address is copied to MAR
opcode used 2 determine type of instruction & hardware 2 use
appropriate instruction/opcode is carried out on the operand
2
What does the Bus Request command do?
causes data on the data bus to be written into the location
indicates that the CPU has granted access to the data bus
Indicates that a device is requesting the use of data bus
causes data from the location to be placed on the data bus
3
What does the control line command clock do?
used to synchronise operations
indicates that a device is requesting access to the CPU
4
Which of the following is part of the fourth stage of the FDE cycle?
The instruction held in the address is copied to the MDR
The contents of the MDR are copied to the CIR
appropriate instruction/opcode is carried out on the operand
The instruction held in the CIR is decoded
5
What does the acronym CIR stand for?
Current Instruction Register
Control Information Rapid
Current Information Register
Control Instruction Register
6
Which bus can only communicate signals one way?
Data Bus
Address Bus
Memory Bus
Control Bus
7
Which is the 3rd step of the FDE cycle?
the data to be operated may be passed to the ALU/ACC
The contents of the MDR are copied to the CIR
appropriate instruction/opcode is carried out on the operand
the actual data to be operated on
8
What does the acronym CPU stand for?
Computer Processing Unit
Control Processing Unit
Central Processing Unit
Current Program Unit
9
What are the control, address and data buses collectively known as?
System bus
Memory bus
Processor bus
Computer bus
10
What does the MDR do?
holds the current instruction being executed
holds the calculations made by the ALU
holds the address of data which is to be fetched
holds the data read from or written to memory temporarily
11
What does the ALU do?
Performs arithmetic and logic operations on the data
Hold the current instruction being executed
Holds the address of the next instruction to be executed
Used to temporarily store the data read written to memory
12
What is an I/O controller?
the connection and control of input and output devices
Stores calculations made by the ALU
Stores recently accessed data
Stores the address of data which is to be fetched
13
What is memory divided up internally into?
Floats
Numbers
Words
Letters
14
Each word in memory has its own...
specific function
specific command
specific identity
specific address
15
What does the Address bus do?
Commands components within the CPU
Provides a bi-directional path for data
Stores the number of programs executed by the CPU
Transmits the memory addresses to the processor
16
What is a bus in computing terms?
A way of communicating with other computers
Transportation of information to a router
A mode of public transport
A set of parallel wires connecting two or more components
17
Where is the address of memory sent when the CPU requests to access it?
Data Bus
Memory Bus
Address Bus
Control Bus
18
What is the purpose of the Control Unit?
to store calculations made by the ALU
store the address of an instruction which is to be executed
To control and coordinate the activities of the CPU
To control operations handled through the operating system.
19
What does the command Interrupt request do
used to synchronise operations
indicates that a device is requesting access to the CPU
causes data from the location to be placed on the data bus
indicates that a device is requesting the use of the databus
20
What happens when an instruction has been executed?
the result is stored at a particular memory location
the instruction will request access to the CPU
the instruction will be fetched
the instruction will be decoded
21
What is the Fetch-Decode-Execute Cycle?
the cycle of recycling
commands system buses on their operations
controls the CPU
sequence of operations involved in executing an instruction
22
What does the accumulator take the place of?
general purpose registers
Control Unit
ALU
CPU
23
What does the acronym MAR stand for?
Memory Address Register
Mathematical Accumulation Register
Mathematical Address Register
Memory Addition Register
24
How many registers are usually in a CPU?
4
16
5
15
25
Which of the below is a function of the CU?
To bootstrap the OS
To store cache data
To create a virtual machine
To control the FDE cycle between CPU components
26
What does the acronym ALU stand for?
Addition-Logic Unit
Addition-Locus Unit
Arithmetic-Logic Unit
Arithmetic-Logarithmic Unit
27
What components are within the CPU?
GPU, CU, buses, dedicated registers
RAM, ROM, CU, Buses
CU, buses, ALU and RAM
CU, buses, ALU and dedicated registers
28
What does the acronym PC stand for?
Program Counter
Personal Computer
Processing Computer
Program Controller
29
What does the term bi-directional bus mean?
Signals can be carried in one direction
Signals can be carried in both directions
30
What does the MAR do?
Holds calculations made by the ALU
holds the address of the data which is to be fetched
holds the data read from or written to memory
holds the amount of programs executed
31
Which of the following is part of the fourth stage of the FDE cycle?
fetching
appropriate instruction/opcode is carried out on the operand
execution
The instruction is split into opcode and operand
32
What does the command Memory Read do?
indicates that a device is requesting access to the CPU
causes data from the location to be placed on the data bus
causes data on the data bus to be written into the location
used to synchronise operations
33
Which of the following is the final stage of the FDE cycle?
Address of next instruction copied from PC to MAR
PC is incremented
Contents of the MDR copied to the CIR
appropriate instruction/opcode is carried out on the operand
34
What does it mean when each bus is a shared transmission medium?
Only one device can transmit along a bus at any one time
Buses can simultaneously communicate with the processor
Buses can access information automatically from the web
Devices can transmit multiple times through buses
35
Which two buses can travel in both directions between the processor,memory and I/O controllers?
None of the buses can
Control Bus and Data Bus
Address Bus and Data Bus
Address Bus and Control Bus
36
What sizes are words typically?
16, 32 or 64 bits
Any size
16, 23 or 64 tb
16, 32 or 64kg
37
Where is the data sent along when the CPU requests access to data in the main memory?
Control Bus
Memory Bus
Data Bus
Address Bus
38
Why are words used as operands in program instructions?
to synchronise operations
the data can be retrieved and sent back to the processor
to request access to the CPU
so that words can be given a specific address
39
What does the command Memory Write do?
causes data on the data bus to be written into the location
indicates that the CPU has granted access to the data bus
used to synchronise operations
indicates that a device is requesting access to the CPU
40
Which is the first step of the Fetch-Decode-Execute cycle?
Contents of MDR are copied to the CIR
Instruction held at the address is copied to the MDR
PC incremented so that it holds address of next instruction
Address of the next instruction is copied from PC to the MAR
41
What does the acronym MDR stand for?
Memory Development Register
Mathematical Data Register
Memory Data Rapid
Memory Data Register
42
What does the command Bus Grant do?
used to synchronise operations
Indicates that a device is requesting access to the CPU
indicates that the CPU has granted access to the address bus
indicates that the CPU has granted access to the data bus
43
What is a register?
Used to log who's present at school
Controls the CPU
Special memory cells that operate at very high speed
Used to calculate the amount of cash is to be exchanged
44
What is a word in computing terms?
A phonetic sound which is spoken and written
A fixed size group of digits
45
Which operations are performed by the ALU?
Boolean Logic
Shift operations
Modulus and Quotient
ADD, SUBTRACT, MULTIPLY, DIVIDE on fixed & floating point No
46
What does the CIR do?
holds calculations made by the ALU
commands the CPU
holds the address of the memory location
holds the current instruction being executed
47
Which two buses are shared by all components of the system?
Control and Memory
Address and Data
Control and Data
Address and Control
48
How many parallel lines does a bus usually consist of?
3, 5, 7, 9
1208, 2412, 4824, 9648
8, 16, 32, 64
3, 9, 54, 79
49
What does the CPU do?
Reads disks
Executes instructions through the FDE cycle
The power source for the computer
Allows you to access the internet
50
What are words used as in program instructions?
Operands
Inputs
Outputs
Words
51
How many phases are in the FDE cycle?
3
4
7
6
52
What does the Program Counter do?
Holds the number of instructions that have been executed
used to temporarily store data read from memory
Holds the address of the next instruction to be executed
Holds the calculations made by the ALU
53
Where are all calculations made by the ALU stored?
CIR
MDR
MAR
Accumulator
54
In the fourth stage of the FDE cycle, what can the operand hold?
Data to be operated on may be passed to the ALU/Accumulator
appropriate instruction/opcode is carried out on the operand
Actual data to be operated on, copied to MDR
Address of the data to be used with operation copied to MAR
55
How many buses connect the processor to the main memory?
4
1
3
2
56
Which bus carries control signals?
Control Bus
Data Bus
Memory Bus
Address Bus
57
What does the Data bus do?
a one directional path for moving data between components
a bi-directional path for moving data between CPU components
58
What do control lines ensure?
That data and address lines do conflict
Access to & use of the data &address buses do not conflict
59
Which 3 functions are the main purpose of the control bus?
Timing, storage and command
Transmit command, timing and specific status information
Timing, specific status information and storing data
Transmit command, store the address and data
60
There are 2 answers which make up the second step of the FDE cycle. Which is one of them?
The data to be operated on may be passed to the ALU
The instruction held at that address is copied to the MDR
content of PC is incremented so it can hold next instruction
Address of next instruction is copied from PC to MAR