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  2. Frequency divider - Wikipedia

    en.wikipedia.org/wiki/Frequency_divider

    For power-of-2 integer division, a simple binary counter can be used, clocked by the input signal. The least-significant output bit alternates at 1/2 the rate of the input clock, the next bit at 1/4 the rate, the third bit at 1/8 the rate, etc. An arrangement of flipflops is a classic method for integer-n division. Such division is frequency ...

  3. Prescaler - Wikipedia

    en.wikipedia.org/wiki/Prescaler

    A prescaler is an electronic counting circuit used to reduce a high frequency electrical signal to a lower frequency by integer division.The prescaler takes the basic timer clock frequency (which may be the CPU clock frequency or may be some higher or lower frequency) and divides it by some value before feeding it to the timer, according to how the prescaler register(s) are configured.

  4. Dual-modulus prescaler - Wikipedia

    en.wikipedia.org/wiki/Dual-modulus_prescaler

    The lower, yellow trace is the N counter output whose frequency corresponds to the channel spacing frequency of 30 kHz. The green trace is the output from the dual-modulus prescaler, which happens to correspond to 7.1714 MHz in the case that the prescaler is at 128 and 7.1158 when it is at 129.

  5. List of 4000-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_4000-series...

    The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...

  6. Television channel frequencies - Wikipedia

    en.wikipedia.org/wiki/Television_channel_frequencies

    TV 6 analog audio can be heard on FM 87.75 on most broadcast radio receivers as well as on a European TV tuned to channel 4A or channel C, but at lower volume than wideband FM broadcast stations, because of the lower deviation. Channel 1 audio is the same as European Channel 2 audio and the video is the same as European Channel 2A.

  7. Counter machine - Wikipedia

    en.wikipedia.org/wiki/Counter_machine

    It starts with the argument [i.e. N] in a counter, and (if it halts) leaves the answer [i.e. F(N)] in a counter." (p. 3) "Theorem: A counter machine can be simulated by a 2CM [two-counter machine], provided an obscure coding is accepted for the input and output" [p. 3; the "obscure coding" is: 2 W 3 X 5 Y 7 Z where the simulated counters are W ...

  8. Intel 8253 - Wikipedia

    en.wikipedia.org/wiki/Intel_8253

    This frequency, divided by 2 16 (the largest divisor the 8253 is capable of) produces the ≈18.2 Hz timer interrupt used in MS-DOS and related operating systems. In the original IBM PCs, Counter 0 is used to generate a timekeeping interrupt. Counter 1 is used to trigger the refresh of DRAM memory. Counter 2 is used to generate tones via the PC ...

  9. Broadcast domain - Wikipedia

    en.wikipedia.org/wiki/Broadcast_domain

    Collisions are localized to the physical-layer network segment they occur on. Thus, the broadcast domain is the entire inter-connected layer-2 network, and the segments connected to each switch or bridge port are each a collision domain. To clarify; repeaters do not divide collision domains but switches do.