Practical AtlasIndependent referencedefinition of done
Acceptance criteria
Observable conditions that distinguish a completed task from a plausible-looking attempt.
24 TERMSPlain-language definitions
Know what the
number means.
Short definitions connect measurements and technical language back to the guides and tools where they become useful.
context window
AI context
The working input available to a model for a request, not a guarantee that every past conversation detail remains available.
Mbps
Bandwidth
A link capacity, commonly expressed as bits per second; it is not the same as file size.
maximum capacity
Battery health
Current maximum battery capacity compared with the design capacity when the battery was new.
BTU/h
BTU per hour
A rate of heat transfer used to describe heating or cooling capacity.
battery cycle
Charge cycle
One full battery of energy charged and discharged, however it is split across partial charges.
page yield
Cost per page
Cartridge or toner price divided by its rated page yield; the number that decides a printer’s real running cost.
TERM
Dew point
The temperature at which air reaches saturation and condensation can begin.
DP Alt Mode
DisplayPort Alt Mode
A USB-C capability that carries DisplayPort video when the host, port, and cable support it.
gpm · flow rate
Gallons per minute
A flow rate: how much water a fixture delivers each minute, which is not the same as the pressure pushing it.
GiB
Gibibyte
1,073,741,824 bytes in binary measurement.
GB
Gigabyte
One billion bytes in decimal storage labeling.
GHz
Gigahertz
One billion cycles per second; Wi-Fi band names describe radio frequency ranges.
worktree
Git worktree
A separate working checkout associated with a Git repository; file isolation does not make it a security sandbox.
kWh
Kilowatt-hour
A unit of energy equal to one kilowatt used for one hour.
ping
Latency
The delay between sending a request and receiving a response.
PPI
Pixel density
The number of display pixels per physical unit of length, commonly pixels per inch.
print spooler
Print queue
The list of jobs the operating system holds for a printer; a paused or stuck queue stops printing even when the printer is healthy.
RH
Relative humidity
The percentage of water vapor present compared with the maximum possible at the same temperature.
vampire power
Standby power
Electric power used while a device is idle or waiting for a command.
tethering
Tethered capture
Sending photographs from a camera directly to a connected computer during a shoot.
tempering valve
Thermostatic mixing valve
A valve that blends cold into stored hot water so a tank can be kept hotter while fixtures still deliver a safer temperature.
MB/s
Throughput
The observed rate of useful data transfer through the complete path.
W
Watt
A unit of power: the rate at which energy is used at an instant.