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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 ...
Base32 (also known as duotrigesimal) is an encoding method based on the base-32 numeral system.It uses an alphabet of 32 digits, each of which represents a different combination of 5 bits (2 5).
The company was purchased by Frank Gibson, a competing manufacturer of "ice refrigerators" in the early 1900s. It was the largest in its industry at the time. In 1931, the company began making electric refrigerators. [1] During the Second World War, Gibson manufactured 1,078 Waco CG-4 troop and cargo assault gliders under license.
An integrated receiver/decoder (IRD) is an electronic device used to pick up a radio-frequency signal and convert digital information transmitted in it. Consumer IRDs [ edit ]
3-to-8 line decoder/demultiplexer, address latch, active high outputs 16 CD74HC237: 74x238 1 3-to-8 line decoder/demultiplexer, active high outputs 16 CD74HC238: 74x239 2 dual 2-to-4 line decoder/demultiplexer, active high outputs 16 SN74HC239: 74x240 8 octal buffer, inverting outputs Schmitt trigger three-state 20 SN74LS240: 74x241 8
Hexadecimal (also known as base-16 or simply hex) is a positional numeral system that represents numbers using a radix (base) of sixteen. Unlike the decimal system representing numbers using ten symbols, hexadecimal uses sixteen distinct symbols, most often the symbols "0"–"9" to represent values 0 to 9 and "A"–"F" to represent values from ten to fifteen.
Videocipher II satellite descrambler stand-alone box sold by General Instrument. VideoCipher is a brand name of analog scrambling and de-scrambling equipment for cable and satellite television invented primarily to enforce Television receive-only (TVRO) satellite equipment to only receive TV programming on a subscription basis.
A secret decoder ring (or secret decoder) is a device that allows one to decode a simple substitution cipher—or to encrypt a message by working in the opposite direction. [ 1 ] As inexpensive toys, secret decoders have often been used as promotional items by retailers, as well as radio and television programs, from the 1930s through to the ...