Day 2-Basics of Digital System
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Transcript of Day 2-Basics of Digital System
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What is digital?Digital describes electronic technology that
generates, stores, and processes data in terms of two states: positive and non-positive.
Positive is expressed or represented by the number 1
non-positive by the number 0.
P.John Samuel / K.Nithya / K.Janani 2
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What is binary?We use the decimal (base 10) number systemBinary is the base 2 number systemTen different numbers are used in base 10.
How many are used in base 2?
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Bits & Byteskilo, mega, and giga are different in binary!
bit (b) – binary digitByte (B) – 8 binary digitsKiloByte (KB) – 210 bytesMegaByte (MB) – 220 bytesGigaByte (GB) – 230 bytes
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What is Computer System?A computer system is one that is able to
take a set of inputs, process them and create a set of outputs.
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What is Computer System?
This is done by a combination of hardware and software.
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What is Software?For processing to take place, there needs
to be a set of instructions of what needs to be done. This set of instructions is called a program.
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What is Software?System Software Operating systemUtilitiesUser interfaceApplication software
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What is Hardware?
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What is Hardware?
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Processor Random Access Memory (RAM) Hard Drive / Disk
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Computer Organization and DesignWhat does “organization” mean?The way H/W components operateConnected to form computer systemWhat is a computer “design”?Type of hardwareHow it is connected
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What is computer architecture? Computer Architecture =
Instruction Set Architecture + Computer Organization
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Von Neumann Architecture
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Harvard Architecture
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