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On 5 January 1975, the 12-bit field that had been used for dates in the TOPS-10 operating system for DEC PDP-10 computers overflowed, in a bug known as "DATE75". The field value was calculated by taking the number of years since 1964, multiplying by 12, adding the number of months since January, multiplying by 31, and adding the number of days since the start of the month; putting 2 12 − 1 ...
Time-triggered architecture (abbreviated as TTA), also known as a time-triggered system, is a computer system that executes one or more sets of tasks according to a predetermined and set task schedule. [1] Implementation of a TT system will typically involve use of a single interrupt that is linked to the periodic overflow of a timer.
A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.
A watchdog timer (WDT, or simply a watchdog), sometimes called a computer operating properly timer (COP timer), [1] is an electronic or software timer that is used to detect and recover from computer malfunctions. Watchdog timers are widely used in computers to facilitate automatic correction of temporary hardware faults, and to prevent errant ...
They are created by using the clause CREATE TRIGGER and deleted by using the clause DROP TRIGGER. The statement called upon an event happens is defined after the clause FOR EACH ROW, followed by a keyword (SET or BEGIN), which indicates whether what follows is an expression or a statement respectively. [5]
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.
The first version of the Office suite, announced by Bill Gates on August 1, 1988 at COMDEX, contained Microsoft Word, Microsoft Excel, and Microsoft PowerPoint — all three of which remain core products in Office — and over time Office applications have grown substantially closer with shared features such as a common spell checker, Object ...
In this text navigation mode the ‘cursor’, often depicted as a blinking vertical line, appears within the text on-screen. The user can then navigate throughout the text by using the arrow navigation keys to cause the cursor to move; typically changing the cursor's location in increments of character position horizontally and of text line vertically.