A portable memory data storage device which is mainly used to transfer files from the hard drive of one computer to another is …………… .

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

Which removable flash memory card format was launched in 2003 as a joint effort of Sony and Scan Disk?

1. Memory Stick Duo
2. Memory Stick Pro
3. Magic Gate
4. None of these

Dot-Matrix printer is a type of …………… .

1. Impact printer
2. Non-Impact printer
3. Manual printer
4. Matrix printer

Which of the following is an output device?

1. Mouse
2. CPU
3. VDU
4. Joystick