WEBVTT

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Hello.

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I'm Brian Farrell.

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And welcome to Peace City session on laptop expansion options.

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Today, we're going to be talking about expansion cards, then we'll move on to random access memory

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and we'll conclude with flash memory.

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Now there's a fair amount of ground to cover.

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So let's go ahead and begin the session, and we'll begin by talking about expansion cards for the laptop.

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The laptops, small form factor and sometimes its method of manufacturing can make it functionally more

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difficult to expand if increasing the functionality of a laptop is the goal.

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In some cases, a technician doesn't have the option of just opening the case and inserting new hardware.

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However, in many cases, the increased capabilities can be achieved through other means.

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That's where expansion cards can come into play.

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The first expansion cards developed for laptops were the PCM CIA card.

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They were introduced by the Personal Computer Memory Card Industry Association in 1990.

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They were also known as the PC card and later as the card bus.

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Originally, it was developed as a means of expanding the storage capabilities, a very small form factor

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devices.

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And then it was extended to work with laptops.

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After its initial development, additional capabilities were added to the standards.

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Now, the PCM CIA card either uses a 16 bit or 32 bit data path, and it came in three types.

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The first card developed was the Type one card.

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It's three point three millimeters thick, and it only came with the 16 bit data path.

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It was commonly used as additional random access memory or as flash memory or as static random access

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memory.

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Then along came the type two card.

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It was five millimeters thick, and it could come with either a 16 or 32 bit data path.

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It introduced input output support to the card.

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Commonly, they were used as modems or network interface cards.

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The final type of PC and CIA card was the type three card.

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It was ten point five millimeters thick, and it always came with a 32 bit data path.

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This is the card bus card.

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It is more robust and allows for a full sized interface, as opposed to the compact input output interfaces

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that came with the type two card.

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External hard drives were also developed as type three card bus cards.

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As the PC card or card bus card age, we discovered that it didn't work as well as we'd hoped.

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So the PCM CIA developed the express card and introduced it in 2003 as the replacement for the card

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bus.

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It has all the features and functionality of the earlier cards, but also offers additional performance.

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And what do I mean by that?

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Well, it can take advantage of internal connections to either the PCI or U.S. B bus.

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This allows for possible transfer rates of two hundred and eighty megabits per second and USB two mode

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and up to three point two gigabits per second in either USB three mode or in PCI e two mode.

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Now, the PCM CIA disbanded in 2009.

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That means that this standard is no longer being developed.

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However, the standard is being maintained by the USB Implementers Forum, the U.S. B Dash I f now express

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cards came in two formats the ExpressCard 34 and the Express Card 54.

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The ExpressCard 34 is 34 mm wide and 75 mm long with a twenty six pin connector.

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The Express Card, 54, is 54 mm wide and 75 mm long, and it also had a twenty six pin connector and

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it's easily recognizable because its L-shaped.

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Now the Express Card 54 slot could accept either of the express card formats.

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So if your laptop came with an Express Card 54 slot, you could use either card in that laptop.

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Now, let's move on to random access memory.

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Laptops use the small outline dual in-line memory module.

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The sodium.

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It was developed as the random access memory solution for the smaller form factor.

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In many cases, it isn't easily performed expansion option used to increase the performance of a laptop.

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Sodium came in many different versions.

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There was the 100 pin SD RAM, the one hundred and forty four pin SD RAM, the 200 pin DDR, the 200

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pin DDR two, the two hundred and four pin DDR three, and the two hundred and sixty pin DDR for increasing

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the amount of sodium in a laptop can increase performance just as increasing the amount of RAM in a

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PC does in modern laptops.

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It's not uncommon for their sodium to be soldered in place.

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In these cases, you cannot easily upgrade the RAM.

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Now let's talk about flash memory.

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So what is flash memory?

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Well, it's a type of non-volatile computer memory that was developed by Toshiba.

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Non-Volatile means that it doesn't require an electrical charge to maintain the state of the data.

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It's commonly used as a highly portable method of storing data in applications.

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Its most common form factor is the USB flash drive.

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It is reasonably inexpensive and it can operate at high speeds.

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Now, some operating systems can use flash memory as random access memory.

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Specifically, Microsoft developed ready boost as a means of caching data on flash, effectively extending

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the random access memory to the flash memory module.

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That often leads to an increase in the performance of a laptop due to the nature of its construction

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and operation.

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Flash memory performance does degrade over time, and it will eventually wear out.

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But don't worry.

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In most cases, you lose it before you wear it out.

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Now that concludes this session on laptop expansion options.

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We started with expansion card options for the laptop.

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Then we moved on to random access memory and we concluded with flash memory.

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Now, on behalf of Peace I.T. Thank you for watching this session, and I'm looking forward to doing

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another one.
