Computer Hardware CSCI-N 100 Dept. of Computer and Information Science.
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Transcript of Computer Hardware CSCI-N 100 Dept. of Computer and Information Science.
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Computer Hardware
CSCI-N 100Dept. of Computer and Information
Science
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Motherboard
Central or primary circuit board Also known as a mainboard system board logic boards
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Motherboard
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Daughterboard
An extension or "daughter" of a motherboard Often have plugs, sockets, pins, connectors, or other attachments for other boards Usually have only internal connections within a computer or other electronic device rather than any external Access the motherboard directly
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Daughterboard
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Central Processing Unit
The component in a digital computer that interprets computer program instructions processes data
Fundamental operation is to execute a sequence of stored instructions called a program Fetch (retrieving an instruction) Decode (the instruction is broken up into parts that have
significance to other portions of the CPU ) Execute (ALU) Writeback (the results of the execute step)
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Central Processing Unit
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Memory
Random access memory (usually known by its acronym, RAM) Type of data store used in computers Takes the form of integrated circuits that allow the stored data to be accessed in any order at random and without the physical movement of
the storage medium or a physical reading head any piece of data can be returned quickly, and in
a constant time, regardless of its physical location and whether or not it is related to the previous piece of data
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Single Inline Memory Module (SIMM)
1. 32-pin2. 72-pin
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Dual Inline Memory Module (DIMM)
1. 168-pin2. 184-pin
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Power Supply Unit (PSU)
typically is designed to convert 110 V or 230 V AC power from the mains to usable low-voltage DC power for the internal components of the computer. Most power supplies have an On/Off switch on the back. There usually is a sticker on the PSU with a list of certifications, the specification, and a warning not to open the enclosure
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Power Supply Unit
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Video/Graphic CardsAlso referred to as a graphics accelerator card, display adapter and numerous other terms Used to refer to a separate, dedicated expansion card that is plugged into a slot on the computer's motherboard Consists of a printed circuit board on which the components are mounted Graphics processing unit Video memory Video BIOS
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Accelerated Graphics Port (AGP)
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PCI Express video adapter card
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Sound card
A computer expansion card that can input and output sound under control of computer programs Typical uses of sound cards include providing the audio component for multimedia applications music composition editing video or audio presentation/education entertainment (games)
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Sound Card
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Floppy
5 ¼ in.
3 ½ in.
5 ¼ in. Floppy Drive 3 ½ in. Floppy
Drive
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Zip
A standard ZIP100 Disk
Later (USB, left) and earlier (parallel, right) Zip drives (media in foreground)
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Flash
1. USB connector 2. USB mass storage
controller device 3. Test points 4. Flash memory chip 5. Crystal oscillator 6. LED 7. Write-protect switch8. Space for second
flash memory chip Internals of a typical flash drive(Seitec brand USB1.1 pictured)
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Hard disk Drive
An IBM hard disk drive with the metal cover removed. The platters are highly reflective Close-up of a hard disk head suspended
above the disk platter together with its mirror image in the smooth surface of the magnetic platter
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CD drive lens
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Network Card
Network cards such as this one can transmit data at high rates over various types of network cables. This particular card is a 'Combo' card which supports three cabling standard types
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Network Card - for DSL/Cable internet, and/or connecting to other computers
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Modem - for dial-up connections
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Keyboard - QWERTY
Lt Blue – typewriter keys Yellow – Function keys Lt yellow – Enter keys
Pink – Windows keys Dark Blue – Numeric pad White - Other
Purple – Application keys Green – Cursor control keys
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Dvorak Simplified Keyboard
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Tracking Devices
A computer pointing device Designed to detect two-dimensional motion relative to its supporting surface "X-Y Position Indicator for a Display System"
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Tracking Devices
One button
Two button
Three button
Optical
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The Dvorak Keyboard and YouCopyright © 2002-2007 Jordon Kalilich
http://www.theworldofstuff.com/dvorak/
Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Computer_hardware
Resources
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Motherboard http://en.wikipedia.org/wiki/Image:ASRock_K7VT4A_Pro_Mainboard.jpg
Daughterboard http://en.wikipedia.org/wiki/Image:Soundscapedb.jpg
CPU http://en.wikipedia.org/wiki/Image:Intel_80486DX2_bottom.jpg
SIMM http://en.wikipedia.org/wiki/SIMM
DIMM http://en.wikipedia.org/wiki/Image:DIMMs.jpg
Power Supply http://en.wikipedia.org/wiki/Image:PSU-Open1.jpg
CD Lens http://en.wikipedia.org/wiki/Image:CD_drive_lens.jpg
Sound Card http://en.wikipedia.org/wiki/Image:Sblive%21.jpg
Video Card http://en.wikipedia.org/wiki/Image:PCI-E_Video.jpg
AGP http://en.wikipedia.org/wiki/Image:AGP_slot.jpg
Tracking Devices http://en.wikipedia.org/wiki/Image:Apple_mouse_Pro.jpg
http://en.wikipedia.org/wiki/Image:2-buttons_mouse.jpg
http://en.wikipedia.org/wiki/Image:Logitech_3_buttons_mouse.jpeg
http://en.wikipedia.org/wiki/Image:Optical_mouse_shining.jpg
Images
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Images (cont’d)
Floppy disk/drives http://en.wikipedia.org/wiki/Image:Floppy_disk_5.25_inch.JPG http://en.wikipedia.org/wiki/Image:5.25_in._floppy_disk_drive_top.jpg http://en.wikipedia.org/wiki/Image:Compact_Floppy.jpg http://en.wikipedia.org/wiki/Image:Floppy_disk_drive_top_%28cover_removed%29.jpgZip disk/drive http://en.wikipedia.org/wiki/Image:ZipDrives.jpeg http://en.wikipedia.org/wiki/Image:Zip-disc-back.jpgFlash http://en.wikipedia.org/wiki/Image:Usbkey_internals.jpgHarddrive http://en.wikipedia.org/wiki/Image:Hard_disk_platter_reflection.jpg http://en.wikipedia.org/wiki/Image:Hard_disk_head.jpgNetwork/Modem http://en.wikipedia.org/wiki/Image:EtherlinkIII_ubt_cleaned.png http://en.wikipedia.org/wiki/Image:ModemISAv34.jpg http://en.wikipedia.org/wiki/Image:Network_card.jpgKeyboard http://en.wikipedia.org/wiki/Image:Qwerty.svg