Download - computer Hardware components
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Introduction to Hardware
Computer Hardware componentsCPUMotherboardRAM (Memory)Storage (Hard drive)Video/Graphics cardCD/DVD burner (Optical drive)CasePower supplyMonitorKeyboardMouseOperating system
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What is binary? We use the decimal (base 10) number
system Binary is the base 2 number system Ten different numbers are used in base 10.
How many are used in base 2?
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Bits & Bytes kilo, mega, and giga are different in binary!
bit (b) – a binary digitKiloBit (Kb) – 210 bitsMegaBit (Mb) – 220 bitsGigaBit (Gb) – 230 bits
Byte (B) – 8 binary digitsKiloByte (KB) – 210 bytesMegaByte (MB) – 220 bytesGigaByte (GB) – 230 bytes
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Storage Scam! Example: iPhone 6 128GB
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Input Devices Keyboard Mouse Webcam Keyboard Mouse Light pen Track Ball Scanner Graphic Tablet Microphone Magnetic Ink Card Reader(MICR) Optical Character Reader(OCR) Bar Code Reader Optical Mark Reader(OMR)
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Output Devices Monitor Printer Speakers any others?
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Power Supply Often comes included with the case Connects computer to electricity
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Central Processing Unit (CPU) Computer’s thinking/calculating brain part Pay attention to:
Model (e.g. Intel Core i5) Clock speed (e.g. 2 GHz) Socket type (e.g. LGA 1156)
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Random Access Memory (RAM) Computer’s memory part of the brain Pay attention to:
Brand (e.g. Crucial, Kingston) Size (e.g. 2GB) Speed (e.g. DDR3 1333 MHz)
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Graphics (Video) Card Specializes in displaying graphics Pay attention to:
Brand (NVIDIA, ATI) Size (512 GB) Speed
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Hard Drive Stores everything Pay attention to:
Brands (Western Digital, Seagate) Speed (e.g. 7200 RPMs) Size (e.g. 512 GB)
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CD/DVD Pay attention to what it can burn…
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Motherboard Connects EVERYTHING!