Skills: use pingConcepts: network transit time, command-line user interface, prefixes for small quantities

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Ping demonstration

Where does this topic fit?

• Internet concepts– Applications– Technology (communication)– Implications

• Internet skills– Application development– Content creation– User skills

Local area network (LAN)

LAN LAN

How much time?

How much time?

Client Server

1101101

Acknowledge

Ping

Ping demonstration

Start > Run

Mind blowing speed

RT to Chile at around 62,000 miles per second – about 1/3 the speed of light.

Same speed?

Night = Day?

Home = School?

Prefixes for small quantities

Prefix Meaning FractionDeci One tenth 1/10Centi One hundredth 1/100Milli One thousandth 1/1,000Micro One millionth 1/1,000,000Nano One billionth 1/1,000,000,000Pico One trillionth 1/1,000,000,000,000

For more on this topic, see this teaching module.