Understanding Computers

Which of the following is computer hardware?

• Monitor
• Scanner
• Keyboard
• All of the above

Which of the following is an input device?

• A computer monitor
• A mouse
• A CD
• A printer

Which of the following is an output device?

• A keyboard
• A hard disk
• A CD ROM
• A computer monitor

Which of the following is a storage device?

• A CD
• A laser printer
• RAM (Random Access Memory)
• A scanner

Which of the following is an input device?

• A camera
• A speaker
• A flash drive
• An inkjet printer

Which of the following is an output device?

• A lift button
• A joystick
• A laser printer
• A scanner

Which of the following is computer software?

• Touch screen
• Microsoft Windows
• Printer
• Floppy disc

A CD is

• A magnetic storage device read by magnetised read-write head
• An optical storage device read by a laser beam
• A magnetic storage device read by magnetised read-write head
• A magnetic storage device read by a laser beam

On a CD ROM

• Data is written in concentric circles
• You can write data to the disk more than once
• Pits and Lands are used to represent 1s and 0s
• All data is represented in ASCII

What would be a suitable device to transfer 12 photos from one PC to another?

• A memory stick
• A CD ROM
• A scanner
• A printer