Module 1 Flashcards
SOHO
small office/home office
Hud
Head up display
RFIDs
Radio frequency identification
ASCII
American Standard Code for Information Interchange
Kbps
Thousands of bits per second
Mbps
Millions of bits per second
Gbps
Billions of bits per second
bps
Bits per second 1bps=fundamental unit of bandwidth
Kbps
Kilobits per second 1Kbps=1K bps=10x3bps
Mbps
Megabits per second 1Mbps=1M bps=10x6bps
Gbps
Gigabits per second 1Gbps=1B bps=10x9bps
Tbps
Terabites per second 1Tbps=1T bps=10x12bps
Volunteered data
This is created and explicitly shared by individuals, such as social network profiles. This type of data might include video files, pictures, text, or audio files.
Observed data
This is captured by recording the actions of individuals, such as location data when using cell phones.
Inferred data
This is data such as a credit score, which is based on analysis of volunteered or observed data.
bit
“binary digit” and represents the smallest piece of data. Each bit can only have one of two possible values, 0 or 1.
Electrical signals
Transmission is achieved by representing data as electrical pulses on copper wire.
Optical signals
Transmission is achieved by converting the electrical signals into light pulses.
Wireless signals
Transmission is achieved by using infrared, microwave, or radio waves through the air.
Throughput does not usually match the specified bandwidth
- The amount of data being sent and received over the connection
- The latency created by the number of network devices encountered between source and destination
