Computer Components

Contents A Brief Introduction What’s Inside a Computer? Video: Computer Tour Key Terms Your Presentation

COMPUTERS LAPTOP / NOTEBOOK DESKTOP WORKSTATION SERVER POCKET PC

What’s Inside a Computer CASE MOTHERBOARD CPU RAM HARD DISK GRAPHICS CARD / VEDIO CARD POWER SUPPLY I/O DEVICES

CASE DVD/CD drive Hard drive power Power Light

MOTHERBOARD MOTHERBOARDS tie everything in your computer together.

MOTHERBOARD Computer hardware, such as MEMORY, PCI and AGP connect to the MOTHERBOARD through SLOTS.

MOTHERBOARD On a PC, it consists of two basic parts -- the NORTH BRIDGE and the SOUTH BRIDGE.

CPU A microprocessor -- also known as a CPU or CENTRAL PROCESSING UNIT -- is a complete computation engine that is fabricated on a single CHIP.

RAM RAM or RANDOM ACCESS MEMORY has a big effect on SYSTEM PERFORMANCE. SIMM, or single in-line memory module has a 32-bit path to memory chips DIMM, or dual in-line memory module, has a 64-bit path to memory chips,

HARD DISK A HARD DISK is a sealed aluminum box. The controller electronics are attached to one side, controlling the read/write mechanism and the motor that spins the platters.

Inside the HARD DISK

Extended Reading Parallel and Serial Interfaces 26-inch Internal SCSI Cable External SCSI4 Cable Serial ATA Drive Connection Cable ATA Connection Cable

HARD DISK Two typical ways to connect a HARD DRIVE to a PC The INTEGRATED DRIVE ELECTRONICS (IDE) INTERFACE which is also called ADVANCED TECHNOLOGY ATTACHMENT. The SERIAL ADVANCED TECHNOLOGY ATTACHMENT (SATA).

GRAPHICS CARD / VIDEO CARD Like a MOTHERBOARD, a GRAPHICS CARD is a printed circuit board that houses a PROCESSOR and RAM.

GRAPHICS CARD / VIDEO CARD The PERIPHERAL COMPONENT INTERCONNECT (PCI) CARD uses 47 PINS to attach to a PCI SLOT. Pins are

GRAPHICS CARD / VIDEO CARD PCI EXPRESS or PCIe eliminates the need for the AGP (ACCELERATED GRAPHICS PORT) by accepting more data and supplying more power to VIDEO CARDS.

POWER SUPPLY PC POWER SUPPLIES use switcher technology to convert the AC input to lower DC voltages. The 3.3- and 5-volts are typically used by digital circuits, while the 12-volt is used to run motors in disk drives and fans.

INPUT DEVICES Keyboards Mice ( Mouse pads ) Game Controller Scanner Graphics Tablets

OUTPUT DEVICES Monitors Printers laserjet inkjet Plotters Speakers

VIDEO: COMPUTER TOUR Let’s watch a video.

KEY TERMS MOTHERBOARD COMPUTER CHIP DESKTOP SLOT LAPTOP SOUTH BRIDGE WORKSTATION SERVER CASE MOTHERBOARD CHIP SLOT SOUTH BRIDGE NORTH BRIDGE CPU PROCESSOR MEMORY RAM

KEY TERMS MOUSE HARD DISK KEYBOARD IDE GAME CONTROLER SATA VIDEO CARD GRAPHICS CARD AGP PCI PCIE POWER SUPLY MOUSE KEYBOARD GAME CONTROLER GRAPHIC TABLET SCANNER MONITOR PRINTER PLOTTER SPEAKER

Your Turn to Give Presentations What’s inside a computer? What’s a CPU? What’s a RAM? What’s a HARD DISK? Give some example of I/O Devices.

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