1758560
Beschreibung
Mindmap von Robyn Shackleton, aktualisiert more than 1 year ago
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Erstellt von Robyn Shackleton
vor mehr als 9 Jahre
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Computer Hardware
- CPU
- central
processing
unit
- responsible for handling
instructions it receives from
hardware and software
- processor speed measured in
gigahertz (GHz) this is the number
of fetch-execute cycles a processor
can perform per second
- dual-core means it contains two CPUs
quad-core means it contains four CPUs
- The CPU carries out
all the processing in
a computer.
- central
processing
unit
- Cache Memory
- Cache memory is special
high speed memory used
by a computer.
- Data that is in use is
transferred into the cache
memory to make access to
it faster.
- Similarities with RAM:
Both volatile (lose all
data when power is
switch off). Both used as
main memory (primary
memory), cache is used
to store data waiting to
be processed.
- Differences with RAM: Cache memory is faster, works at the same
speed as the CPU. Is also lot smaller (MBs rather than GBs).
- Cache memory is special
high speed memory used
by a computer.
- Binary Logic
- AND, OR, NOT
- Logic gate: A
Circuit that
produces an
output based on
the inputs
- Truth table: A method for
recording all the possible input
combinations and determining
the output for each
- Logic
Circuit: A
circuit
made by
combining a
sequence of
logic gates
- Boolean
Algebra: A
Method for
expressing
mathematically
a logic circuit
- AND, OR, NOT
- Secondary Storage
Medienanhänge
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