In some cases additional information is available (such as real-time clocks).
The developers also introduced a real-time clock, with actions based on the clock.
The control section provided instruction buffers, memory management functions, and a real-time clock.
In the case of the CPC-300, which does have a real-time clock, the current date and time is also shown.
There was a DS1302 real-time clock included which could keep the settings and hold the time backed by a battery.
Some microcontrollers have a real-time clock built in, generally only the ones with many other features and peripherals.
It uses an operating system service that sets an alarm, running off the real-time clock.
For machines with real-time clocks, a set of instructions might have been used to access the time.
This feature is useful for computers whose real-time clock does not maintain the correct time.
Twenty bytes of memory were included in the real-time clock counter chip.