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Computer Science
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Cards (138)
What is the fetch-execute cycle?
Instructions are fetched,
decoded
, and executed.
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What is the role of the CPU?
Controls
operations
and executes program
instructions
.
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What does ALU stand for?
Arithmetic Logic Unit
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What is the purpose of processor cache?
Stores
instructions
for quicker access by the
CPU
.
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What is a register in the CPU?
A small area of
temporary
memory.
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What is Von Neumann Architecture?
Design
defining
CPU
interaction with
memory
.
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What does MAR stand for?
Memory Address Register
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What is the function of the MDR?
Holds the
instruction
copied from
main memory
.
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What does the Program Counter do?
Holds the address of the next
instruction
.
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What is the purpose of the Accumulator?
Stores the
result
of the last operation.
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What is clock speed measured in?
MHz
or
GHz
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How does cache size affect CPU performance?
Larger cache allows faster
instruction
access.
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What are CPU cores?
Independent
processing units
within
a CPU.
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What is an embedded system?
Specialized
hardware
and software for
specific
tasks.
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What is primary storage also known as?
Memory
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What is RAM?
Temporary
storage for programs and data.
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What does ROM stand for?
Read Only Memory
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What is volatile memory?
Memory that loses data when
powered off
.
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What is non-volatile memory?
Memory that retains data when
powered off
.
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What is virtual memory?
Hard drive space used as
main memory
.
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What is optical storage?
Data stored on a spinning disk using
lasers
.
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How does magnetic storage work?
Uses
magnetic fields
to
store
data.
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What is solid-state storage?
Storage using
flash memory
with no moving parts.
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What is an HDD?
A
magnetic
storage drive for
large
data.
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What is a DVD?
A high-capacity
optical
storage disk.
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What is a CD?
An
optical
disk often used for music.
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What is an SSD?
A solid-state drive faster than
HDDs
.
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What is a bit?
The smallest unit of
storage
.
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What is a nibble?
4
bits
, or
half
a
byte
.
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What is a byte?
8
bits
.
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What is a kilobyte (KB)?
1000
bytes
.
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What is a megabyte (MB)?
1000
KB
.
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What is a gigabyte (GB)?
1000
MB
.
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What is a terabyte (TB)?
1000
GB
.
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What is a petabyte (PB)?
1000
TB
.
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What is binary?
A
number system
using 0 and 1.
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What is denary?
A
number system
using
digits
0 to 9
.
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What is a positive number?
A number greater than
0
.
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What is a negative number?
A number less than
0
.
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What is an integer?
A
whole number
without a
decimal
.
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