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One millionth of a second
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or 1⁄1,000,000) of a second. Its symbol
Microsecond
American engineer
"Dumey microsecond" is a term of art in the intelligence community of the United States where Dumey spent much of his career. The Dumey microsecond was a
Arnold_Dumey
The Microsecond Bus, μSB or MSB is an asymmetric serial communication interface specification for short-distance communication between a master and multiple
Microsecond_Bus
One billionth of a second
approximately 31.69 years. A nanosecond is equal to 1000 picoseconds or 1/1000 microsecond. Time units ranging between 10−8 and 10−7 seconds are typically expressed
Nanosecond
Light energy absorbance and re-emission
phosphorescent materials may continue to emit an afterglow ranging from a few microseconds to many hours after the excitation is removed. There are two separate
Phosphorescence
Computer built in 1957 for Los Alamos Scientific Lab
16K of 6-microsecond cycle time core memory, and 64K of 2-microsecond cycle time core memory. A NOP instruction took about 2.5 microseconds. A multiplication
MANIAC_II
Date and time representation system widely used in computing
computing, values are sometimes stored with higher granularity, such as microseconds or nanoseconds. Unix time is currently defined as the number of non-leap
Unix_time
Photographic light source capable of producing sub-microsecond light flashes
air-gap flash is a photographic light source capable of producing sub-microsecond light flashes, allowing for (ultra) high-speed photography. This is achieved
Air-gap_flash
IEEE standard for wireless networks
default guard interval is 0.8 microseconds. However, 802.11ax extended the maximum available guard interval to 3.2 microseconds, in order to support outdoor
Wi-Fi_7
Hindu units of time are described in Hindu texts ranging from microseconds to trillions of years, including cycles of cosmic time that repeat general events
Hindu_units_of_time
Compact astronomical body
exceedingly difficult to detect from Earth. A possible exception is the microsecond-long burst of gamma rays emitted in the last stage of the evaporation
Black_hole
Early electronic computer
to 305 microseconds. Its addition time was 38 microseconds, multiplication time was 240 microseconds, and division time was 375 microseconds. (These
RAYDAC
Ballistic Research Laboratories Electronic Scientific Computer
addition took 5 microseconds, a floating-point addition took 5 to 10 microseconds, a multiplication (fixed- or floating-point) took 25 microseconds, and a division
BRLESC
Livermore Advanced Research Computer
in April 1969. The LARC CPUs were able to perform addition in about 4 microseconds, corresponding to about 250 kIPS speed. This made it the fastest computer
UNIVAC_LARC
Megathrust earthquake off Japan's east coast
The speed of the Earth's rotation increased, shortening the day by 1.8 microseconds due to the redistribution of Earth's mass. The axial shift was caused
2011 Tōhoku earthquake and tsunami
2011_Tōhoku_earthquake_and_tsunami
Protects electrical devices from voltage spikes
(AC) circuits from voltage spikes with very short duration measured in microseconds, which can arise from a variety of causes including lightning strikes
Surge_protector
Network time synchronization protocol
the configuration. In a local area network (LAN), accuracy can be sub-microsecond – making it suitable for measurement and control systems applications
Precision_Time_Protocol
Industrial standard for programmable logic controllers
Duration literals Unit Description d Day h Hour m Minute s Second ms Millisecond us Microsecond ns Nanosecond
IEC_61131-3
Topics referred to by the same term
Upper Silesia Uranium monosulfide Ut supra, Latin for "as above" Humans Microsecond (μs) United States (disambiguation) Uz (disambiguation) SU (disambiguation)
Us
Solid-state semiconductor device
width of the gate current is sufficiently large (generally some tens of microseconds), the TRIAC has completed the triggering process when the gate signal
TRIAC
One thousandth of a second
equal to one thousandth (0.001 or 10−3 or 1/1000) of a second or 1000 microseconds. A millisecond is to one second, as one second is to approximately 16
Millisecond
128-bit number used to identify information in computer systems
32 bits of the 64-bit 4-microsecond timestamp, origin=Jan 1, 1980 time_low 16 Low-order 16 bits of the 64-bit 4-microsecond timestamp reserved 16 Reserved
Universally_unique_identifier
Discontinued computer memory type
generation of solid-state drives would achieve 95000 IOPS throughput with 9 microsecond latency. This low latency significantly increases IOPS at low queue depths
3D_XPoint
Optional memory for larger IBM System/360 models
implemented using magnetic cores; the cycle time is 8 microseconds and the access time is 3.6 microseconds. This component is also called IBM 2361 Core Storage
IBM 2361 Large Capacity Storage
IBM_2361_Large_Capacity_Storage
Computer built in 1961 for the University of Chicago
memory. Its floating-point multiplication time was 71 microseconds, and division time was 81 microseconds. The MANIAC III's most novel feature was unnormalized
MANIAC_III
SI prefix denoting 10 to the -9th power
approximately 31.69 years. A nanosecond is equal to 1000 picoseconds or 1/1000 microsecond. Time units ranging between 10−8 and 10−7 seconds are typically expressed
Nano-
models suggested the earthquake shortened the length of a day by 2.68 microseconds, due to a decrease in the oblateness of the Earth. It also caused the
2004 Indian Ocean earthquake and tsunami
2004_Indian_Ocean_earthquake_and_tsunami
data mile away, then the radar return from that target would arrive 12 microseconds after the transmission. (Recall that radar was developed during World
Data_mile
Compression due to electromagnetic radiation
modeled as a trapezoidal pulse with a one microsecond rise time, one microsecond plateau, and one microsecond fall time. For a 30 kiloton fission bomb
Radiation_implosion
Early computer
EDVAC's average addition time was 864 microseconds and its average multiplication time was 2,900 microseconds. ENIAC inventors John Mauchly and J. Presper
EDVAC
Stock exchange in New York City
IEX in 2016, NYSE MKT rebranded as NYSE American and introduced a 350-microsecond delay in trading, referred to as a "speed bump", which is also present
NYSE_American
Satellite navigation system
metres (660 ft), and also provided time synchronization to roughly 50 microseconds. Transit satellites also broadcast encrypted messages, although this
Transit (satellite navigation system)
Transit_(satellite_navigation_system)
Primary time standard globally used to regulate clocks and time
current UTC from a number of official internet UTC servers. For sub-microsecond precision, clients can obtain the time from satellite signals. UTC is
Coordinated_Universal_Time
U.S.-based stock exchange
under 320 microseconds. The point-of-presence links for traders to gain access to IEX have a built-in, round-trip delay of 700 microseconds from a 38-mile
IEX
1954 transportable computer
access time was 48–384 microseconds. The addition time was 48 microseconds, and the multiplication/division time was 2112 microseconds. These times are excluding
DYSEAC
First published description of a stored-program computer
two binary digits as taking one microsecond and that therefore a 30-bit multiplication should take about 302 microseconds or about one millisecond, much
First Draft of a Report on the EDVAC
First_Draft_of_a_Report_on_the_EDVAC
Chemical elements that do not occur naturally
varying rates; the half-lives of their longest-lived isotopes range from microseconds to millions of years. Six more elements that were first created artificially
Synthetic_element
distance on the radar display. Radar timing is usually expressed in microseconds. To relate radar timing to distances traveled by radar energy, the speed
Radar_mile
Quantum computing chip
Sycamore and improves upon T1 coherence time from Sycamore's 20 microseconds to 100 microseconds. Willow's 105 qubits have an average connectivity of 3.47.
Willow_processor
Standard formats for transferring time information
the carrier. Typical commercial devices will synchronize to within 1 microsecond using IRIG B timecodes. IRIG timecode is made up of repeating frames
IRIG_timecode
Single-use source of very short and extremely bright flash of light
The light intensity rises to full magnitude in about 0.1 microsecond. For about 0.5 microsecond the shock wave front instabilities are sufficient to create
Argon_flash
Supercomputer of the 1960s
register add – 1.59 microseconds Floating-point add, no modification – 1.61 microseconds Floating-point add, double modify – 2.61 microseconds Floating-point
Atlas_(computer)
Quantum transitions that are not allowed in the most direct mechanism
lifetimes on the order milliseconds to seconds, compared to less than a microsecond for decay via permitted transitions. In some radioactive decay systems
Forbidden_mechanism
Transponder intended for emergency use at sea
it first sweeps rapidly (0.4 microsecond) through the band before beginning a relatively slow sweep (7.5 microseconds) through the band back to the starting
Search_and_rescue_transponder
Comparison of a wide range of timescales
order-of-magnitude quantity together with a base unit of time, like a microsecond or a million years. In some cases, the order of magnitude may be implied
Orders_of_magnitude_(time)
Study of hardware and software systems that have a "real-time constraint"
are often understood to be in the order of milliseconds, and sometimes microseconds. A system not specified as operating in real time cannot usually guarantee
Real-time_computing
Networking protocol for clock synchronization
These are computers whose system time is synchronized to within a few microseconds of their attached stratum 0 devices. Stratum 1 servers may peer with
Network_Time_Protocol
Nuclear reactor state where the nuclear chain reaction is exactly self-sustaining
later, when the fission products decay, which may be on the average from microseconds to minutes later. This is fortunate for atomic power generation, for
Criticality_(status)
First electronic digital computer in Japan
500 microseconds. An addition or subtraction was clocked at 100 microseconds, multiplication at 1,600 microseconds, and division at 2,100 microseconds. Used
FUJIC
Semiconductor light source
quickly. A typical red indicator LED achieves full brightness in under a microsecond. LEDs used in communications devices can have even faster response times
Light-emitting_diode
Detonator fired by electric current
and Primacord have a detonation velocity of 8 millimeters per microsecond. A one microsecond delay in detonation from one side of a nuclear weapon to the
Exploding-bridgewire detonator
Exploding-bridgewire_detonator
SI derived unit of power
average lightning strike peaks at 1 TW, but these strikes only last for 30 microseconds. Petawatt A petawatt can be produced by the current generation of lasers
Watt
Natural satellite orbiting Earth
fingernails grow). Atomic clocks show that Earth's Day lengthens by about 17 microseconds every year, slowly increasing the rate at which UTC is adjusted by leap
Moon
Computer expansion bus standard
PCIe-CEM 5.0, the additional power connectors need to be able to handle 100-microsecond power draw at 3× of maximum sustained power, reducing to 1× at the 1-second
PCI_Express
Periodic table of the elements with eight or more periods
alpha decay or spontaneous fission in microseconds or less. The exact region in which half-lives exceed one microsecond is unknown, though various models
Extended_periodic_table
Connection standard for electronic musical instruments
total 10 bits. So while the 31,250 baud rate corresponds to 31.25 kbit/s, the net bit rate is 25 kbit/s. Each byte with its frame uses 320 microseconds.
MIDI
Computer software bug occurring in 2038
of which are already in use), such as storing either milliseconds or microseconds since an epoch (typically either 1 January 1970 or 1 January 2000) in
Year_2038_problem
Geological phenomenon
6876 Ra-226 1,599 years 4.784 Rn-222 3.823 days 5.4897 Po-218 3.04 minutes 5.181 Po-214 163.7 microseconds 7.686 Po-210 138.4 days 5.304 Pb-206 stable 0
Pleochroic_halo
{\displaystyle 2^{64}} counting in increments of microseconds. The TSF is based on a 1-MHz clock and "ticks" in microseconds. On a commercial level, industry vendors
Timing synchronization function
Timing_synchronization_function
Early type of computer memory
not in popular use at the time), with recirculation times measured in microseconds. To read or write a particular memory address, it is necessary to wait
Delay-line_memory
Electronic component
transients such as 8/20 microseconds or 10/1000 microseconds, where 8 microseconds is the transient's front time and 20 microseconds is the time to half value
Varistor
High-speed camera with an exposure time as brief as 10 nanoseconds
explosions within milliseconds of detonation, using exposures of several microseconds. To overcome the speed limitation of a conventional camera's mechanical
Rapatronic_camera
High-gain voltage amplifier with a differential input
excess of 5,000 V per microsecond. However, it is more common for op amps to have slew rates in the range 5–100 V per microsecond. For example, the general-purpose
Operational_amplifier
Incoherent light source
in very fast rise time systems, typically those that discharge in the microsecond regime, such as used in high-speed, stop-motion photography or dye lasers
Flashtube
Metric system unit prefix, one millionth
(HL7) standard, the μ can be replaced by u as well. Microgram Microscope Microsecond Microwave Square micrometre List of commonly used taxonomic affixes International
Micro-
Science of the motion of projectiles
Wesson revolver firing, taken with an ultra high speed air-gap flash. Using this sub-microsecond flash, the bullet can be imaged without motion blur.
Ballistics
Time zone observed in India; UTC+05:30
time and frequency broadcast service, which offers IST correct to ±10 microsecond and frequency calibration of up to ±10−10. Time and frequency calibrations
Indian_Standard_Time
Network that allows computers to share resources and communicate with each other
to network congestion. IP network delays can range from less than a microsecond to several hundred milliseconds. The parameters that affect performance
Computer_network
Medical procedure
(removal of structure or functionality) utilizing high-amplitude pulsed (microsecond duration) electric fields to create irreversible electroporation in tissues
Pulsed_field_ablation
Microprocessor produced by Western Digital
3.3 microseconds plus source time of 2.7 microseconds and destination time of 3.0 microseconds, for a total instruction time of 9.0 microseconds. The
WD16
Computer series
was 1 microsecond (which gives a clock rate of 1 MHz), with 12 microsecond memory access and a fixed-point multiplication taking 242 microseconds. Input/output
Philco_computers
Topics referred to by the same term
Unlimited, conservation group TU (time unit), a unit of time equal to 1024 microseconds Transmission unit, a historical unit of loss in long distance telephony
TU
Study of subatomic particles and forces
are unstable and the longest-lived last for only a few hundredths of a microsecond. They occur after collisions between particles made of quarks, such as
Particle_physics
Unit of length
speed of data transfer between different parts of a computer. One light-microsecond is about 300 metres. The mean distance, over land, between opposite sides
Light-second
Tabular arrangement of the chemical elements
example, the lifetime of the most long-lived He− level is about 359 microseconds.) The noble gases, having high ionisation energies and no electron affinity
Periodic_table
Recording to reproduce a three-dimensional light field
compensates for the fact that the recording time, which is in the order of a microsecond, is still very long compared to the processing time of an electronic
Holography
Metric prefix
solar capacity reached several terawatts in 2022. Peak power of a 30-microsecond lightning strike. terawatt-hour (TW⋅h or TWh): common unit for large-scale
Tera-
of announcement, the 3705-I had to use 1.2 microsecond core storage; the later 3705-II uses 1.0 microsecond SRAM. Solid Logic Technology components, similar
IBM 3705 Communications Controller
IBM_3705_Communications_Controller
Name of various communications satellites
and the United States to within 1 microsecond of each other (previous efforts were accurate to only 2,000 microseconds). The Telstar 1 satellite also relayed
Telstar
Laboratory No. built 6 Frequency 3,200 MHz Beamwidth 0.8º Pulsewidth 0.8 microsecond RPM 10 rpm Range 200 miles (320 km) Azimuth 360º Other names Microwave
AN/CPS-1
Particle smaller than an atom
neutron, all other hadrons are unstable and decay into other particles in microseconds or less. A proton is made of two up quarks and one down quark, while
Subatomic_particle
Discrete resolution of a measurement with respect to time
1007/978-0-387-35973-1_1376, ISBN 978-0-387-35973-1, retrieved 2024-10-25 Pierce, D. A Microsecond Response Pressure Transducer for Blast Wave Measurements Archived June
Temporal_resolution
Type of electric circuit
Department, Amsterdam, the Netherlands. Riepe, Kenneth B., "High-voltage microsecond pulse-forming network". Review of Scientific Instruments Vol 48(8) pp
Pulse-forming_network
Imbalance of electric charges within or on the surface of a material
volts. When touching an object this energy is discharged in less than a microsecond. While the total energy is small, on the order of millijoules, it can
Static_electricity
the nuclei. Within an extremely short time, perhaps a hundredth of a microsecond or so, the weapon residues consist essentially of completely and partially
Effects_of_nuclear_explosions
Energy source
small location and is passed during an extremely short period of time (microseconds); therefore, extremely high electrical power is involved. It has been
Harvesting_lightning_energy
Type of nuclear magnetic resonance spectroscopy
whole spectrum to be excited with practically achievable pulses of a few microseconds in duration. However, since the natural abundance of 2H is only 0.016%
Deuterium_NMR
Pocket calculator
operation means shut-off time ranges from 3.3 microseconds during calculations to more than 65 microseconds between. The device relies on the capacitance
Sinclair_Executive
microseconds, and the return-time of a pulse from a distant target is 1200 microseconds, the apparent distance of the target is only 200 microseconds
Radar_signal_characteristics
Television that uses analog signals
chrominance signal) are not present. The front porch is a brief (about 1.5 microsecond) period inserted between the end of each transmitted line of picture
Analog_television
1957 photograph by Harold Edgerton
stroboscope that could emit 60 10‐microsecond flashes of light per second and recharge in less than a microsecond, which could thus be used to take high-speed
Milk_Drop_Coronet
Ordnance Discrete Variable Automatic Computer
2178 vacuum tubes. Its addition time was 72 microseconds and the multiplication time was 732 microseconds. Its main memory consisted of 1024 words of
ORDVAC
American satellite-based radio navigation service
the clocks on GPS satellites, as observed by those on Earth, run 38 microseconds faster per day than those on the Earth. The design of GPS corrects for
Global_Positioning_System
1950s computer
which stored 2,000 words electrostatically, with an access time of 8 microseconds. Each word consisted of 16 decimal digits, using four bits to represent
IBM Naval Ordnance Research Calculator
IBM_Naval_Ordnance_Research_Calculator
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days
List of radioactive nuclides by half-life
List_of_radioactive_nuclides_by_half-life
Non-closing over-pressure relief device
application. Rupture discs provide instant response (within milliseconds or microseconds in very small sizes) to an increase or decrease in system pressure, but
Rupture_disc
Set of standards under development by the IEEE for real-time networking
IEEE 802.1AS is a tightly constrained subset of IEEE 1588 with sub-microsecond precision and extensions to support synchronisation over WiFi radio (IEEE
Time-Sensitive_Networking
4096 12-bit words of core memory (access time 2.5 microseconds, memory cycle time 16 microseconds) external storage: 8-track punched tape. Input device:
MIR_(computer)
First electronic computer to be built at the Institute for Advanced Study
previous one finished. The addition time was 62 microseconds and the multiplication time was 713 microseconds. Although some claim the IAS machine was the
IAS_machine
Type of diode
across it (typically full switch-on takes a few hundred nanoseconds to microseconds). The diode remains in conduction until the current through it drops
DIAC
MICROSECOND
MICROSECOND
MICROSECOND
MICROSECOND
Girl/Female
Celtic, Christian, German, Welsh
Race of Women; White Wave; White and Smooth; Soft
Boy/Male
Gujarati, Hindu, Indian, Kannada, Punjabi, Sikh
One Protected by God; Eternity
Boy/Male
Indian, Malayalam
Peaceful
Boy/Male
Hindu
Ancient king of kannauj, Victory
Girl/Female
Indian, Rajasthani
Great; Powerful; Awesome
Boy/Male
Hindu, Indian
Features
Girl/Female
African, Australian, Nigerian
The Crown is Loving; Affectionate; Wealth of the Crown; Crown is Cared for
Girl/Female
Arabic, Ghana, Russian
Thankful
Boy/Male
Arabic, Chinese, Muslim
Competent; Well Disposed; One of the Ninety-nine Names of God; Who Creates
Boy/Male
British, English
Prince
MICROSECOND
MICROSECOND
MICROSECOND
MICROSECOND
MICROSECOND