MGMT 1050 Lecture Notes - Lecture 15: Flash Memory, Inkjet Printing, Liquid-Crystal Display
MGMT 1050 Tutorial 15 Notes – Flash Memory
Introduction
• We discussed the trade-offs that make each form desirable for some purposes.
• Following this general introduction, we introduced flash memory, and discussed its
applications, strengths, and weaknesses.
• Next, we showed the layout and explained the operation of various forms of disk,
including hard magnetic and optical.
• We showed how the performance factors, capacity and various speed measures are
obtained.
• For each device we showed how a block is identified and located.
• We noted the difference between the concentric tracks used on magnetic disks and the
spiral tracks used on many optical disks.
• We explained the difference between CAV and CLV operation.
• The discussion of disks is followed by a similar discussion for magnetic tape.
• The display is the most important output device.
• We explained the process used to produce a display, from the bytes in memory that
represent individual pixels or characters to the actual output on a screen.
• We showed that there are two different forms of output, character and graphic.
• We showed how colors are determined for the display.
• We also showed the basic technology for the two methods that are used to produce an
image, video on a CRT, and liquid crystal display.
• There are a number of different technologies used in printers.
• We introduced laser printers, inkjet printers, and thermal transfer printers as
representative of the most important current technologies.
• The chapter continues with a brief discussion of keyboards, various pointer devices,
scanners, and multimedia devices that are used for input.
• We conclude with a brief consideration of the network as an input/output device, a
discussion to be expanded greatly.
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