16th October 2008
Coordinated Universal Time (UTC from the French Temps Universel Coordonné) is an international timescale based on the time told by atomic clocks. Atomic clocks are accurate to within a second in several million years. They are so accurate that Internati...
16th October 2008
Atomic clocks use an atomic resonance frequency standard as their timekeeping element and are by far the most accurate chronometers possible with the latest Strontium based atomic clocks boasting a precision of a less than a second lost in several hundred...
16th October 2008
NEMA (National Electrical Manufacturers Association) has established a range of standards for electrical equipment enclosures. NEMA codes tend to be used by countries outside of Europe, including the USA. NEMA codes use a number to describe the level of ...
08th October 2008
ATEX is the name commonly given to the European directives for controlling explosive atmospheres and the standards of equipment and protective systems used in them. ATEX is now law in all European Union countries with companies that have potentially exp...
08th October 2008
What is a time server?
A time server is a device that utilises a single time source and distributes it amongst a network. This enables all machines on a LAN (or WAN) to be synchronised together.
What is NTP?
Network Time Protocol is a protocol ...
08th October 2008
All PC’s and networking devices use clocks to maintain an internal system time. These clocks, called Real Time Clock chips (RTC) provide time and date information. The chips are battery backed so that even during power outages, they can maintain time.
...
02nd October 2008
Most people have heard of atomic clocks, their accuracy and precision are well known. An atomic clock has the potential to keep time for several hundred million years and not lose a second in drift. Drift is the process where clocks lose or gain time beca...
02nd October 2008
What is a network time server?
A network time server is a hardware device that utilises a single time source and distributes it amongst a network to ensure all computers and devices are telling the same time.
What is NTP?
Network Time Protocol ...
24th September 2008
There are hundreds of internet based timing sources that allow computers running NTP to synchronise to a UTC time - however, there are several drawbacks in relying on the Internet for a timing reference:
Security is paramount for most computer network...
24th September 2008
The development of atomic clocks throughout the twentieth century has been fundamental to many of the technologies we employ everyday. Without atomic clocks many of the innovations of the twentieth century would simply not exist.
Satellite communicatio...
24th September 2008
Q. What is NTP?
A. NTP – Network Time Protocol is an Internet protocol for time synchronisation, whilst other time synchronisation protocols are available NTP is by far the most widely used having been around since the mid 1980’s when the Internet wa...
23rd September 2008
Network Time Protocol seems to have been around for ever. In fact it is indeed one of the Internet’s oldest protocols having been developed in the 1980’s by Professor David Mills and his team from Delaware University.
In a laid-back world it perhap...
23rd September 2008
A NTP Server connects to a computer network with the purpose of synchronising all computers, routers and other devices to the exact same time. NTP servers use Network Time Protocol to adjust the drift of different machines to match the reference time.
...
09th September 2008
The way a computer deals with time is totally different to the ways humans perceive it. We arrange time into seconds, minutes, hours, days, weeks, months and years, while computers on the other hand arrange time as a single number representing the seconds...
08th September 2008
Even when the Internet when was its infancy, with no more than a few computers connected together it became apparent that there was a need for time synchronisation. Computers are easily confused particularly with time which can only travel in one directio...
