Which device scans images, documents, and saves them on a computer as a digital image?

1. MICR
2. Joystick
3. Scanner
4. None of these

Which type of plotter is used to produce continuous output such as plotting earthquake activity?

1. Drum plotter
2. Flatbed plotter
3. Disk platters
4. None of these

The rate of data transmission of a DVD is faster than …………… .

1. Blu-ray Disk
2. CD-ROM
3. Hard disk
4. Memory stick

The disk which uses blue violet laser to read and write is …………… .

1. DVD
2. Flash drive
3. Blu-ray Disk
4. CD ROM