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Nt1110 Research Paper Unit 4 Port Expanders

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Ports and Connectors Serial Port - Male 9 or 25 pins Parallel Port - Female 25 Pins Game Port - Female 25 pin in 2 rows
These ports are being replaced by USB.
Network Interface Card (NIC) Modem - Connects to phone line Video USB - 127 ports may be plugged into SCSI IEEE 1394 – high speed expected to replace SCSI. Multimedia, microphone and speakers
Two types of monitor and they are CRT& LCD Screen Size Contrast Ratio Resolution – Higher resolution, the sharper the image (Native Resolution).
Ports
VGA DVI S-Video
Buses
AGP – High Speed Video Slot PCI Express – Twice as fast as AGP EMI – Electromagnetic Interference (Florescent Lighting/Speakers) Capacitor- Do not attempt to open a monitor. Danger of stored electricity
Printers and Hardware Dot Matrix – Multi part forms and tractor feed system Inkjet – Thermo Bubble and Piezoelectric Laser – Electrophotographic with 6 steps Cleaning – cleans toner from drum Conditioning – applies 600 volts to drum Writing – writes image to drum. <100 volts Developing – toner is transferred to drum Transferring – toner is transferred to positively charged paper Fusing – rollers apply heat and pressure to melt toner onto paper
The proper way to install a printer is to run CD first, then let it auto detect.
Improving Performance – Add more memory, lower resolution, and move graphics to another page
The information given on the video elaborated on the changes that have and are taking place as technology advances. I never realized that there were 127 ports for USB uses and how upgrading the computer gave you so many decisions as to what your limitations are.

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