Secondary storage devices consist of media like CDs or DVDs, or physical devices, such as flash memory drives or external hard drives. Older computer systems also used floppy disks or magnetic tapes for secondary storage.
Secondary storage is used as a cheaper alternative to internal hard drives, and differs from components like a computer's RAM memory by being a permanent storage medium. A computer cannot directly manipulate the data on a secondary storage device without RAM to store and run the data; information is instead quickly read into memory to be written back onto the device. In the case of media that cannot be written to multiple times, data on the hard drive refers to resources on the disc, and both are used to run software while saving the results.Learn More
Computers are a prime example of a digital device in everyday use. According to the Brooklyn College Department of Computer and Information Science, a digital device is one that converts information into numbers to allow for storage and transport of that information.Full Answer >
Input devices allow users to enter data into the computer. Some of the main input devices are the keyboard, mouse, webcam, touch screen, optical mark reader, pen, stylus and microphone.Full Answer >
Examples of computer output devices include a display monitor, speakers, headphones and a printer. Other common output devices include a projector, sound card, video card or television. To be considered a computer output device, the periphery device must be able to receive data from a computer.Full Answer >
Examples of peripheral devices include the keyboard, mouse, monitor, printer, scanner, USB drive, webcam and headphones. Peripheral devices connect to the central processing unit of a computer and provide the it with input, output and storage capabilities.Full Answer >