What is an I/O controller?

the connection and control of input and output devices

What happens when an instruction has been executed?

the result is stored at a particular memory location

What does the Program Counter do?

Holds the number of instructions that have been executed, Holds the address of the next instruction to be executed

What is the Fetch-Decode-Execute Cycle?

sequence of operations involved in executing an instruction

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 MDR do?

holds the data read from or written to memory temporarily

What does the Data bus do?

a bi-directional path for moving data between CPU components

What do control lines ensure?

Access to & use of the data &address buses do not conflict

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 Interrupt request do

indicates that a device is requesting access to the CPU

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

The instruction held in the CIR is decoded

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

appropriate instruction/opcode is carried out on the operand

What does the Address bus do?

Transmits the memory addresses to the processor

What components are within the CPU?

CU, buses, ALU and dedicated registers

In the fourth stage of the FDE cycle, what can the operand hold?

Address of the data to be used with operation copied to MAR, Actual data to be operated on, copied to MDR, Data to be operated on may be passed to the ALU/Accumulator

What does the command Memory Write do?

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

There are 2 answers which make up the second step of the FDE cycle. Which is one of them?

content of PC is incremented so it can hold next instruction, The instruction held at that address is copied to the MDR

Which operations are performed by the ALU?

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

Which is the 3rd step of the FDE cycle?

The contents of the MDR are copied to the CIR

What does the Bus Request command do?

Indicates that a device is requesting the use of data bus

Define the term 'bus'?

A set of parallel wires connecting two or more components

What does the command Memory Read do?

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

Why are words used as operands in program instructions?

the data can be retrieved and sent back to the processor

What does the MAR do?

holds the address of the data which is to be fetched

Which 3 functions are the main purpose of the control bus?

Transmit command, timing and specific status information

What does the term bi-directional bus mean?

Signals can be carried in both directions

What does the ALU do?

Performs arithmetic and logic operations on the data

What does the CIR do?

holds the current instruction being executed

What is the purpose of the Control Unit?

control and coordinate the activities of the CPU

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

opcode used 2 determine type of instruction & hardware 2 use

Special memory cells that operate at very high speed

What does the command Bus Grant do?

indicates that the CPU has granted access to the data bus

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Processor components (Bus)

59 termsStudBud Administration8 plays

A Computer Science quiz for the Processor Components Section Finish at Q17

Flashcards59 cardsFPractice quizPHost liveL

Questions 59

Answers

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

Processor components (Bus) Flashcards | StudBud

Processor components (Bus)

59 termsStudBud Administration8 plays

A Computer Science quiz for the Processor Components Section Finish at Q17

Flashcards59 cardsFPractice quizPHost liveL

Questions 59

Answers

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