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Published byCharlene Hall Modified over 9 years ago
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Computer Hardware
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Input Devices In computing, an input device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance.
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Keyboard Wired or wireless Keyboards for phones Ergonomic Keyboard
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Mouse Wired or Wireless
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Alternative Pointing Devices Trackballs Pointing Stick Touch pads
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Touch-Sensitive Pads and Touch Screens
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Pen Input
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Game Controllers
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Visual Input
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Voice Input http://www.midomi.com/ Shazam Soundhound
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Scanners and Readers
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Biometric Data
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Output Devices An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) which converts the electronically generated information into human-readable form.
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Display Devices LCD ScreensCRT
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Display Devices – Cathode Ray Tub
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LCD – Liquid Crystal Display http://www.youtube.com/watch?v=jiejNAUwc Q8 http://www.youtube.com/watch?v=jiejNAUwc Q8 RESOLUTION: 1280×1024 Pixels, 60 Hz, 8 Bit Color Number of bits per second displayed? Camera has Mega Pixels (Million Pixels)
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Speakers, Headphones, Earbuds
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The System Unit The case that contains all the electronic components Includes: – Motherboard – Processor(s) – Memory – Buses – Adapters/Expansion Slots – Drive Bays and Drives – Power Supply
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Motherboard Holds many of the crucial components of the system, such as the central processing unit (CPU) and memory, and provides connectors for other peripherals
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Processor(s) or CPU CPU: stands for Central Processing Unit. Is the hardware within a computer system which carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of a system. Multi-core – two or more CPU’s Node – Holds a Multi-core CPU
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Multi-Core and Parallel Processing
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Pipelining
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Threading and Hyperthreading Each CPU can handle a thread Thread does a pipeline CPU has to execute pipeline for each thread Hyper threading
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Cooling
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Video/Graphics Cards
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Speed and Performance Measured in Hz (number of cycles per second) Refresh Rate of TV, 60, 120, 240 Hz (GO BACK TO LCD SLIDE) Processors now at GHz That’s 1,000,000,000 Hz (Billion)
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Speed and Performance
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Memory Hard drive RAM More on this later
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