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IGCSE CompSci Fetch Execute Cycle Flashcards | StudBud
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IGCSE CompSci Fetch Execute Cycle
IGCSE CompSci Fetch Execute Cycle
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KS3 CPU - Fetch Execute Cycle #cpu #fetchexecutecycle #quadcore #clockspeed
Flashcards
30 cards
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Questions
30
Answers
1
What register does assembly language take place in?
Instruction Register
ALU
Main Memory
Accumulator
2
What is the function of the ALU?
Performing basic arithmetic operations
Accessing mathematical functions through the register
Transmitting data along the address bus
Performing write operations to the Cache
3
What storage is the cache memory?
Permanent
Temporary
Unlimited
Part-time
4
The cycle goes in this order
Execute, fetch, decode, store
Decode, execute, fetch, store
Store, fetch, decode, execute
Store, decode, execute, fetch
5
Quad Core means?
(Potentially) two times as fast at processing information.
(Potentially) Four times as fast at processing information
Not fast at processing information.
(Potentially)five times as fast at processing information
6
What is an instruction register?
It holds the data bus location being executed.
It holds the data being executed.
It holds the address of the instruction being executed.
It holds the instruction being executed.
7
Where in the fetch execute cycle is the data/programs stored permanently?
HDD
RAM
Control Unit
Main Address Bus
8
Clock speed - what is it?
The speed of the data bus
The number of operations the control unit processes in 1s
The number of fetch-decode-execute cycles performed in 1s
The number of seconds per CPU cycle
9
Why is Cache Memory faster that RAM?
It is closer to the CPU than the RAM
It has a larger memory capacity than RAM
It's has a higher clock speed than RAM
It has more levels than RAM
10
What does CPU stand for?
Central Processing Unit
Control Processing Unit
Central Park Unit
Central Peak Unit
11
What does it mean to say that a processor is 1.4 GHZ?
The processor has 1, 400,000,000 cycles per second.
The processor has 1, 400,000,000,000,000 cycles per second.
The processor has 1, 400,000 cycles per second.
The processor has 1, 400,000,000 cycles per minute.
12
What does MAR stand for?
Memory Action Requirement
Memory Address Register
MAC Address register
Manual ASCII Register
13
What is the stored-program concept?
All data and program instructions are stored on the HDD
data/instructions are logically the same + stored in memory
Data is kept separate from Programs
Programs are all stored in the main memory register
14
What does the word volatile mean?
it is temporary & when the computer is turned off it is lost
It is only available via simplex transmission
It is consistent
It is permanent and stays there forever
15
The MDR Register stands for?
Memory Dump Register
Memory Data Register
Memory Declaration Register
Memory Distribution Register
16
Why do CPUs use cache memory?
for higher speed data access
for extra storage in addition to RAM
For higher speed data writing to HDD
To avoid buffer overflows
17
The PC register stands for?
Prevent Control
Personal Computer
Program Control
Program Counter
18
Which component in the von Neumann architecture would you say acts as the stage manager.
Control Unit
Cache
Register
ALU
19
What is a CPU register?
all of the others
An address store
A register store
A data store
20
A 4Ghz processor is faster than 5Ghz...
Always
If it has more RAM
it depends on the number of CPU cores
Never
21
How is data communicated between the different sections of the CPU?
Data Stream
Address bus
Data Bus
Control Bus
22
What does the Control Unit (CU) do?
Manages moving data and program into and out of memory
Carries out calculations on the data
Deals with executing program instructions one at a time
Controls the Input and Output (I/O) devices
23
The accumulator stores
Instructions
Processed Data
Addresses
input data
24
CPU's follow the Fetch-_______-Execute Cycle.
Decode
Decrypt
Decore
Decide
25
Addresses are stored in the Program Counter
False
True
26
What transports the data or programs from the RAM?
Data Register
Data Taxi
Data Bus
Address Bus
27
Which is NOT a function of buses in computers?
Addressing
Timing
Processing
Data transmission
28
What does FSB stand for?
Formal Standard Bit
Fidget Spinners, Bah!
Front Side Bus
Format Serial Bit
29
How many levels of Cache are there?
3
1
4
2
30
Which of these registers are in the ALU?
Accumulator
MAR
Instruction Register
PCR
