Memory

TJ Moore and Scott Barringer

Types of Storage

• USB Flash Drive• Compact Disk

• SD Card• DVD

• External Hard Drive

USB Flash Drives

• Varies in size and capacity.• Helpful in that there are no additional cables

or wires. • All that is needed is a USB slot on the

computer.• Invented in 1998

USB Flash Drives

• The primary benefit is its capacity.• Has replaced the now out-dated floppy disk

drives.• Wide range of different memory storage

capacities.

Capacities

• The first flash drives were developed with memories of only 8, 16, 32, and 64

Megabytes.• Now flash drives can range from 1 gigabyte to

256 gigabytes.

HOLY $#^*

USES

• Moving files from one computer or laptop to another.

• Troubleshooting• Having a portable computing environment.

• Booting up your computer or laptop.

EXAMPLES

Compact Disks

• Also known as CD’s• Can be flimsy at times.• Can be easily broken.

• Quickly becoming an outdated form of technology.

• Good for storing a multitude of song files, movie files, and picture files.

CAPACITIES

• Can normally hold about 80 minutes of audio media.

• About 650 megabytes of data.• Not even close to a modern day flash drive.• Much higher storage than an old floppy disk.

USES

• Normally used for storing small files.• Most common use is for “burning” music.

• Can be used for quick mass production of files.• Holding a large number of picture files.

• Storing data.

EXAMPLES

SD CARDS

• Newer form of technology.• Found in many digital cameras, laptops, media

players and even cell phones.• Proven to be a very popular and useful piece

of technology.• Some can be installed into flash drives.

SD CARDS CONTINUED

• Quickly becoming more used than many Compact Flash chips.

• Can hold a vast number of data files, audio files and picture files.

CAPACITIES

• Can have as much as 32 Gigabytes of memory.• The memory span is growing and becoming

faster all the time.• Can be up to 150x faster than other forms of

memory storage.

USES

• Used in many new digital cameras.• Hold files in many new laptops and PCs.

• Most cells phones use SD cards for storing media and some recorded audio.

• Good for holding audio in most new audio players and MP3/iPods.

USES CONTINUED

• Good for holding data and files in laptops and PCs.

• Can be implemented in some video game systems for storage of games.

EXAMPLES

DVD

• Used for storage of most movie files.• Shelf life of over 100 years

• Read by lasers so they can be read hundreds of times

• Same disadvantages of CD’s

CAPACITIES

• Can hold up to 4.7 gigabytes of information per side.

• About 133 minutes of MPEG-2 audio/video

• Can hold about 30 hours of VHS quality audio/video.

USES

• Home video• Mass production of movies.

• Profitable sales.• Converting VHS audio video to a more

portable and convenient form.

Examples

EXTERNAL HARD DRIVES

• Sits on the outside of the computer tower.• Sometimes contains a cooling fan.

• Can keep all of you DVD images, audio files, and other data safely.

• Is a great financial investment for multiple people using one computer.

CONTINUED

• Easily change out drives without as much hassle.

• Small and out of the way.• Newer form of computing technology.

• Holds more data and information than all other memory devices.

CAPACITIES

• Most have about 500 gigabytes of storage.

• Some actually have about 1 terabyte of storage capacity and above.

That’s alota

data ! ! ! !

USES

• Store all of your data in one central area.• Keep all of your data and other important files

safe.• Easily transfer data and all other transferable

data from one area to the next.• Change other drives with more ease.

EXAMPLES

Resources• http://www.dvddemystified.com/dvdfaq.html• http://www.sdcard.org/developers/tech/sdhc/• http://support.microsoft.com/kb/306524

• http://kb.doit.wisc.edu/showroom/page.php?id=2924• http://www.wisegeek.com/what-is-an-external-hard-drive.ht

m• http://www.infocellar.com/dvd/capacity.htm

•http://www.helpwithpcs.com/buy-guides/external-hard-drives.html

THE END