computing(mr.bell) keywords

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  • Created by: Harish
  • Created on: 14-04-13 20:30
boolean variables
true or false
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truth table
a table that gives possible outcomes when entered combinations of outputs
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OR
the output is true if one of the input is true
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AND
the output is true if both of the input is true
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NOT
the output is inverse of input
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logic gate
an electronic circuit that performs a boolean function
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ex-OR
the output is true if one of the input is true not if both of inputs are true
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NAND
the output is true if any of the input is true
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NOR
the output is true only when all inputs are false
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Hardware
the platform on which the software is exicuted
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mainmemory
memory that is directly addressable by the processor
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memory location
a separately addressable area of main memory
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RAM
random acess memory,volatile,same access time for reading and writing operaations
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ROM
read only memory, non-volatile, can only read after it is set up
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EEPROM
Electronically erasable programmable read only memory, writing is 100 time slower than reading
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BUS
a set of wires that connect individual components of a computer.
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system bus/external bus
the main highway that connects the processor, I/O main memory. consist of data bus address bus and control bus
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I/O
input/output
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peripharals
mouse, keyboard etc.
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I/O devices
a hardware unit that sends and receives data through I/O controler.
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I/O controler.
an electronic circuit that connects the I/O devices with the system bus
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secondary storage
permanent storage memory that is not directly connected to the processor
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main memory adress
a unique code corresponding to a location of memory
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stored program consept
a program must be resident in main memory to be exicuted
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register
a very fast memory location inside the processor or I/O controller
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general purpose register
a register not assigned to a specific role by the processor designer
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dedicated register
a register which is assigned to a specific role by the processor designer
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clock speed
the speed in Mh or Gh which a processor executes a set of instructions.
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word length
the number of digits in a binary word
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bus width
the number of signal wires or lines allocated to the bus
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Other cards in this set

Card 2

Front

a table that gives possible outcomes when entered combinations of outputs

Back

truth table

Card 3

Front

the output is true if one of the input is true

Back

Preview of the back of card 3

Card 4

Front

the output is true if both of the input is true

Back

Preview of the back of card 4

Card 5

Front

the output is inverse of input

Back

Preview of the back of card 5
View more cards

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Hold tight Mr Bell

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