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Unit 3 Assignment 1

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Submitted By strox
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Craig Roxbury
Unit 3 Assignment 1
Erica Lanier

Video Summary 1

In video 1.07 the lesson is on ports and connectors. There are three different types of ports, those are serial port, parallel port and game port. The serial port is usually male and have 9 or 25 pins. The parallel port is usually female and has 25 pins. The game ports are female and have 15 pins. All of those ports have been replaced by USB ports. The video also discusses how the modem connects to a phone line and converts digital to analog. It explains there are two types of SCSI narrow and wide SCSI, the narrow SCSI has 50 pins and the wide has 68 pins.
Video 1.09 teaches that there are two types of monitors, you have CRT and LCD. CRT stands for cathode ray tube and LCD stands for liquid crystal display. The CRT is similar to an old television and the LCD uses thin film transistors and the back lighting is through polarized panels. Your specifications of a monitor include screen size, contrast ratio, refresh rate, response time, interfacing, dot pitchand pixel pitch.
Video 1.11 focuses on types of printers and the types of problems that come with each. There is the Dot Matrix, Ink Jet and the laser printers. Overall the videos covered your computer basics and the parts that make it productive. I could comprehend the objective of the videos but they all covered a plethora of information in a matter of minutes, so I feel there was a lot that I missed. Fortunately what I did not catch in the video chapter three in my textbook fills in.
Topics in the videos: * Ports and Connectors * Types of Monitors * Types of Printers
Terms used in the videos: * USB- universal serial bus * IRQ- interrupt request * SCSI- small computer systems interface
NIC- network interface card * CRT- cathode ray tube * LCD- liquid crystal display

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