Computer drives
Floppy drives have evolved through out the years. They used to be five and a quarter drives. Now floppy drives are three and a half inches. The old five and a quarter drives were only one sided and they could not hold much information. Now the smaller three and a half inch floppy disks for the floppy drive are double sided. These floppy drives are great for transferring information from one computer to an other computer. Floppy disks allow a person to work on documents and other things on other computers. This is also great if your printer breaks or it your computer does not have a printer. You are then able to print on an other computer with those capabilities. A floppy drive can save up to about two point eight eight megabytes worth of information to a floppy disk. These particular disks are called extended capacity. The norm for a floppy disk is about one point four four megabytes of data.
Cd rom drives are great for music and anything in cd form. A laser in the drive reads the cds in the drive. The laser reads dots. The reflective surface on the cd reflects an image back to what is called a photo detector. Cd roms can store a lot of data. Many people like to use this drive for big data bases or also for multi media programs. A little motor inside the drive must spin the disk in order to read the different sectors of data. There are many different types of speed needed to spin the disk. A drive can read one hundred fifty thousand bytes of info per second. That is a lot of info per second. The speeds of these drives can vary all the way up to eight times speed. All of these drives are widely available. There are some drives that can burn these cds. These burner drives are very widely available. As a matter of fact now a days more computers come with burner drives than they do without burner drives. Anybody can buy blank cds so that they can burn there data on to them. These cd's are pretty cheap and are cool because you can mix your own cds and stuff with all of the right software. The data that is saved to these disks are mo. This means that magnetic and optical data are saved on to these cds.
Scsi drives also pronounced skuzzy drives allow for the user to connect multiple devices to their computer. These drives are based on the older sasi drives from the eighties. These scsis can handle one hundred sixty mega bytes of data per second. Scsis can work with most computers. The first scsis were developed in 1986 and are a lot more reliable fast and dependable.
These are the most common types of external drives. This report would not be complete without info on a hard drive. Your hard drive is of course the big brains of the whole computer operation for lack of better words. Hard drives a re cheap and can be replaceable. These drives are what make our computers more versatile. These drives make the computers easier, more fun to use and more versatile to use in between other computers. These drives are what make a computer now days
