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In 1979, Kronos delivered the world's first microprocessor-based time clock and, in 1985, delivered its first PC-based time and attendance product. In 1992, Kronos became a publicly-traded company on NASDAQ. Aron Ain, [6] succeeded his brother Mark Ain as chief executive officer in 2005. [7] In March 2007, Kronos went private again, bought out ...
Time clock. A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees (or those on flexi-time) at a place of business. In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card, into a slot on the time clock.
The time clock division of Simplex was sold to Kronos shortly afterward. On September 6, 2016, Johnson Controls and Tyco completed a merger. [ 2 ] In May 2017, Johnson Controls announced that the brand identity of SimplexGrinnell will be transitioned to Johnson Controls.
Kronos is an operating system with time-sharing capabilities, written by Control Data Corporation in 1971. [1] Kronos ran on the 60-bit CDC 6000 series mainframe computers and their successors. CDC replaced Kronos with the NOS operating system in the late 1970s, which were succeeded by the NOS/VE operating system in the mid-1980s. [2][3]
Combined with the faster switching speeds of the silicon transistors, the new CPU ran at 10 MHz (100 ns cycle time), about ten times faster than other machines on the market. In addition to the clock being faster, the simple processor executed instructions in fewer clock cycles; for instance, the CPU could complete a multiplication in ten cycles.
The first member of the CDC 6000 series was the supercomputer CDC 6600, designed by Seymour Cray and James E. Thornton [23] in Chippewa Falls, Wisconsin.It was introduced in September 1964 and performs up to three million instructions per second, three times faster than the IBM Stretch, the speed champion for the previous couple of years.
NOS (Network Operating System) is a discontinued operating system with time-sharing capabilities, written by Control Data Corporation in 1975. NOS ran on the 60-bit CDC 6000 series of mainframe computers and their successors. NOS replaced the earlier CDC Kronos operating system of the 1970s. NOS was intended to be the sole operating system for ...
Watchclock. A watchclock is a mechanical clock used by security guards as part of their guard tour patrol system which require regular patrols. The most commonly used form was the mechanical clock systems that required a key for manual punching of a number to a strip of paper inside with the time pre-printed on it.
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