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 ID: 731375
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Slide1
Computer HardwareSlide2
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.Slide3
Keyboard
Wired or wireless
Keyboards for phones
Ergonomic KeyboardSlide4
Mouse
Wired or WirelessSlide5
Alternative Pointing Devices
Trackballs
Pointing Stick
Touch padsSlide6
Touch-Sensitive Pads and Touch ScreensSlide7
Pen InputSlide8
Game ControllersSlide9
Visual InputSlide10
Voice Input
http
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Shazam
SoundhoundSlide11
Scanners and ReadersSlide12
Biometric DataSlide13
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.Slide14
Display Devices
LCD Screens
CRTSlide15
Display Devices – Cathode Ray TubSlide16
Display Devices – Cathode Ray TubSlide17
LCD – Liquid Crystal Display
http://www.youtube.com/watch?v=jiejNAUwcQ8
RESOLUTION:
1280×1024 Pixels, 60 Hz, 8 Bit Color
Number of bits per second displayed?
Camera has Mega Pixels (Million Pixels)Slide18
Speakers, Headphones, EarbudsSlide19
The System Unit
The case that contains all the electronic components
Includes:
Motherboard
Processor(s)
Memory
BusesAdapters/Expansion Slots
Drive Bays and DrivesPower SupplySlide20
Motherboard
Holds many of the crucial components of the system, such as the central processing unit (CPU) and memory, and provides connectors for other peripheralsSlide21
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 CPUSlide22
Multi-Core and Parallel ProcessingSlide23
PipeliningSlide24
Threading and Hyperthreading
Each CPU can handle a thread
Thread does a pipeline
CPU has to execute pipeline for each thread
Hyper threadingSlide25
CoolingSlide26
Video/Graphics CardsSlide27
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)Slide28
Speed and PerformanceSlide29
Memory
Hard drive
RAM
More on this later