Storage+Devices

Data can be lost when your computer hard disk crashes – always shut down properly! Can break down || Basically the same as a Flash memory stick – in place of your normal magnetic hard drive || -Reduced risk of damaging due to no moving parts. Better battery life due to no moving parts || -Expensive compared to Magnetic (traditional hard drive) Wears out eventually || (300 pages of text) || Floppy disks have a small capacity. It can only transfer small files from one computer to another. It backup small important files from hard disks and restricts secret files that you don’t want anyone else seeing. || -Can transfer small files quickly. || -Way too small capacity, you can’t put much data into them. || -Can be set up to back over night || -Needs a special piece of equipment to read data -Serial access may be very slow || -Small and portable -Less vulnerable as there are no moving parts || -Limited amount of read and write cycle. ||
 * ** Storage Device ** ||  ** Size **  ||  ** Description **  ||  ** Advantages **  ||  ** Disadvantages **  ||
 * = Hard Disk =
 * (Magnetic storage) ** || 120 Gb - 1 Terabyte. || The hard disk is the main storage device in your computer. It is a bit like a filing cabinet: all of your data files and applications software are stored on it. || -Relatively cheap – now in video cameras || Contains moving parts
 * ==** Solid State hard Drive **==
 * (Silicon Storage) ** || Up to 160GB || The future of hard drives
 * ** Floppy Disk **
 * (Magnetic Storage) ** || Only 1.44mb
 * ** Zip Drive **
 * (Magnetic) **||  ||
 * ||  || || 100mb || Zip drives have a bigger capacity than floppy disks, to access it, the computer needs to have zip drive. || -Can transfer a more data than a floppy disk. || -A small capacity, can’t store much data. ||
 * ** Magnetic tape backup ** || 100gb || Magnetic tapes can store large amounts of data, but takes a lot of time to achieve the data that is needed since you have to keep forwarding it until you find the right place. || -The cheapest form of storage
 * ** CD-ROM **
 * (optical storage) ** || 700mb || CD-ROM are a pre-pressed compact disc hat contains data accessible to, but not writable by, a computer for data storage and music playback. || -Flat and portable || -Slower access than hard disks ||
 * ** CD-RW **
 * (optical storage) ** || 700mb || CD- RW is a compact disk that allows you to save as many data as you want. || -Fairly fast to access data || -Very fragile ||
 * ** DVD **
 * (optical storage) ** || 4.7BGB || A DVD is use to store and read data. || -They are mass produced so they are cheap || -They can easily break or get damaged. ||
 * ** Flash Memory Stick **
 * (Silicon storage) ** || Up to 64GB || Flash memory is no volatile sticks. They access data much faster because there are no moving parts. Netbooks use flash memory as their main source of memory as there are no spaces for traditional hard disks. || -Access data fast
 * ** Memory Cards **
 * (Silicon storage) ** || Up to 32 GB || Memory cards are electronic flash memory data storage device used for storing digital information. || -Very compact and portable || -Can get lost very easilys ||