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A pedal bin of 1972 Video of pedal bin showing operation. A pedal bin is a container with a lid operated by a foot pedal. Lillian Moller Gilbreth (an industrial engineer and efficiency expert as well as mother of twelve [1]) invented the pedal bin in the 1920s for the disposal of kitchen waste. The foot pedal enables the user to open the lid ...
The first computer to have multiple parallel discrete single-bit ALU circuits was the 1951 Whirlwind I, which employed sixteen such "math units" to enable it to operate on 16-bit words. In 1967, Fairchild introduced the first ALU-like device implemented as an integrated circuit, the Fairchild 3800, consisting of an eight-bit arithmetic unit ...
EISA—Extended Industry Standard Architecture; ELF—Extremely Low Frequency; ELF—Executable and Linkable Format; ELM—ELectronic Mail; EMACS—Editor MACroS; EMS—Expanded Memory Specification; ENIAC—Electronic Numerical Integrator And Computer; EOF—End of File; EOL—End of Life; EOL—End of Line; EOM—End of Message; EOS—End of ...
The first documented computer architecture was in the correspondence between Charles Babbage and Ada Lovelace, describing the analytical engine.While building the computer Z1 in 1936, Konrad Zuse described in two patent applications for his future projects that machine instructions could be stored in the same storage used for data, i.e., the stored-program concept.
See also References External links A Accelerated Graphics Port (AGP) A dedicated video bus standard introduced by INTEL enabling 3D graphics capabilities; commonly present on an AGP slot on the motherboard. (Presently a historical expansion card standard, designed for attaching a video card to a computer's motherboard (and considered high-speed at launch, one of the last off-chip parallel ...
A 32-bit register can store 2 32 different values. The range of integer values that can be stored in 32 bits depends on the integer representation used. With the two most common representations, the range is 0 through 4,294,967,295 (2 32 − 1) for representation as an binary number, and −2,147,483,648 (−2 31) through 2,147,483,647 (2 31 − 1) for representation as two's complement.
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4-bit computing is the use of computer architectures in which integers and other data units are 4 bits wide. 4-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on registers or data buses of that size.