flowchart symbols

oval/ellipse - start/stop
parallelogram - input/output
rectangle - process
diamond- decision box

Find the average of 3 numbers:


Find the product of 3 numbers:

Computer Architecture

Input and output devices:
Input Devices:
- graphics tablets
- cameras
- video capture hardware
- barcode reader
- digital camera

Output Devices:
- monitor
- printers
- projector
- speakers

Both input-output devices:
- modems
- network cards
- touch screen
- headsets
- fax
- audio cards