1-bit Full-adder
1 bit is the smallest possible information size. 1-bit may refer to: * 1-bit computing, systems that process 1 bit per work cycle * 1-bit DAC, the oversampling digital-to-analog converter technology * Binary image A binary image is one that consists of pixels that can have one of exactly two colors, usually black and white. Binary images are also called ''bi-level'' or ''two-level'', Pixelart made of two colours is often referred to as ''1-Bit'' or ''1b ...

1-bit Computing
In computer architecture, 1-bit integers or other data units are those that are (1/8 octet) wide. Also, 1-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on registers of that size. There are no computers or microcontrollers of any kind that are exclusively 1-bit for all registers and address buses. A 1-bit register can only store 21 different values, i.e. 0 or 1 (off or on, respectively). This is very restrictive and therefore not enough for a program counter which, on modern systems, is implemented in an on-chip register, that isn't implemented on-chip in some 1-bit systems. Opcodes for at least one 1-bit processor architecture were 4-bit and the address bus was 8-bit. While 1-bit CPUs are obsolete, the first carbon nanotube computer from 2013 is a 1-bit one-instruction set computer (and has only 178 transistors). 1-bit A serial computer processes data a single bit at a time. For example, the PDP-8/S was a 12-bit c ...
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1-bit DAC
A Bitstream or 1-bit DAC is a consumer electronics marketing term describing an oversampling digital-to-analog converter (DAC) with an ''actual'' 1-bit DAC (that is, a simple "on/off" switch) in a delta-sigma loop operating at multiples of the sampling frequency. The combination is equivalent to a DAC with a larger number of bits (usually 16-20). The advantages of this type of converter are high linearity combined with low cost, owed to the fact that most of the processing takes place in the digital domain and requirements for the analog anti-aliasing filter An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem over the band of interest. Since the theorem states that unambiguous reconstruc ... after the output can be relaxed. For these reasons, this design is very popular in digital consumer electronics (CD/DVD players, set-top boxes and the like).Smith, Steven W., ...
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