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Reconfigurable digital circuit element
complex programmable logic devices (CPLDs); and field-programmable gate arrays (FPGAs). In 1969, Motorola offered the XC157, a mask-programmed gate array
Programmable_logic_device
A simple programmable logic device (SPLD) is a programmable logic device with complexity below that of a complex programmable logic device (CPLD). The
Simple programmable logic device
Simple_programmable_logic_device
Type of electronic component
programmable logic device (CPLD) is a programmable logic device with complexity between that of programmable array logic (PAL) and field-programmable
Complex programmable logic device
Complex_programmable_logic_device
Field-programmable semiconductor devices
Programmable Array Logic (PAL) is a family of programmable logic device semiconductors used to implement logic functions in digital circuits that was introduced
Programmable_Array_Logic
Array of logic gates that are reprogrammable
a subset of logic devices referred to as programmable logic devices (PLDs). They consist of a grid-connected array of programmable logic blocks that can
Field-programmable_gate_array
Programmable digital computer used to control machinery
A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing
Programmable_logic_controller
Device performing a Boolean function
field-programmable nature of programmable logic devices such as FPGAs has reduced the "hard" property of hardware; it is now possible to change the logic design
Logic_gate
Custom digital electronics used to interface simple integrated circuits
more complex cases, a programmable logic device like a CPLD or FPGA might be used. The falling price of programmable logic devices, combined with their
Glue_logic
Overview of and topical guide to electronics
Complex programmable logic device (CPLD) Erasable programmable logic device (EPLD) Simple programmable logic device (SPLD) Macrocell array Programmable array
Outline_of_electronics
Programming language for industrial controllers
record programmable controller programs, but today, other forms are standardized in IEC 61131-3. For example, instead of the graphical ladder logic form
Ladder_logic
Traditional first example of a computer programming language
computer) or nonexistent. For devices such as microcontrollers, field-programmable gate arrays, and complex programmable logic devices (CPLDs), "Hello, world"
Hello,_world
Main printed circuit board used for a computing device
A motherboard, also known as a mainboard, system board, logic board, and informally mobo (see "Nomenclature" section), is the main printed circuit board
Motherboard
Multidrop serial communication standard
the wiring among several seats, reducing weight. These are used in programmable logic controllers and on factory floors. RS-485 is used as the physical
RS-485
Use of a fluid to perform analog or digital operations
Another kind of fluidic logic is bubble logic. Bubble logic gates conserve the number of bits entering and exiting the device, because bubbles are neither
Fluidics
Process by which desired circuit behavior is turned into a schematic of logic gates
tools generate bitstreams for programmable logic devices such as PALs or FPGAs, while others target the creation of ASICs. Logic synthesis is one step in circuit
Logic_synthesis
American electronics products business
dealing with memory devices, an additional accessory series called the 'LogicPak,' was introduced to handle programmable logic devices (PALs, GALs, etc.)
Data_I/O
Device used for calculations
branch was sometimes used to distinguish a programmable calculator from a computer. The first Soviet programmable desktop calculator ISKRA 123, powered by
Calculator
Computer hardware device
different terms are used to identify devices that perform the UART functions. Intel called their 8251 device a "Programmable Communication Interface" because
Universal asynchronous receiver-transmitter
Universal_asynchronous_receiver-transmitter
Class of digital circuits
larger chips well into the 1990s. Until the advent of programmable logic, discrete bipolar logic was used to prototype and emulate microarchitectures under
Transistor–transistor_logic
System that manages the behavior of other systems
the setpoint. For sequential and combinational logic, software logic, such as in a programmable logic controller, is used.[clarification needed] Fundamentally
Control_system
Powered mechanical device
programmable machines were developed in the Muslim world. A music sequencer, a programmable musical instrument, was the earliest type of programmable
Machine
Electronic circuits that utilize digital signals
assemblies of logic gates, used to represent more complex ideas, are often packaged into integrated circuits. Complex devices may have simple electronic
Digital_electronics
interface of the programmable logic controller SIMATIC S7 of the company Siemens. It is used for connecting the stations programming (PC or personal computer)
Multi-Point_Interface
Type of integrated circuit
CPU, with programmable analog blocks (operational amplifiers and comparators), programmable digital blocks (PLD-based UDBs), programmable routing and
Cypress_PSoC
Clock for measuring time duration
Modern controllers use a programmable logic controller (PLC) instead of a box full of electromechanical parts. The logic is usually designed as if it
Timer
American semiconductor company (1969–1987)
American semiconductor company which produced bipolar PROMs, programmable logic devices, and logic circuits (including 7400 series TTL). A team of MMI engineers
Monolithic_Memories
Family of digital circuits
1970s, PMOS logic was the dominant semiconductor technology for large-scale integrated circuits before being superseded by NMOS and CMOS devices. Mohamed
PMOS_logic
American computer programmer
complementary metal–oxide–semiconductor (CMOS) Programmable Array Logic (PAL) programmable logic devices (PLDs). Stuart conceived installing battery-operated
LaFarr_Stuart
Study of correct reasoning
Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical
Logic
Device that selects between several analog or digital input signals
demultiplexer and a multiplexer. Multiplexers can also be used as programmable logic devices to implement Boolean functions. Any Boolean function of n variables
Multiplexer
Method of CPU communication
used with I/O device registers as well. In contrast, port-mapped I/O instructions are often very limited, often providing only for simple load-and-store
Memory-mapped I/O and port-mapped I/O
Memory-mapped_I/O_and_port-mapped_I/O
American technology company
primarily supplied programmable logic devices. The company is renowned for inventing the first commercially viable field-programmable gate array (FPGA)
Xilinx
Programmable logic devices, such as programmable array logic and complex programmable logic devices, typically have a macrocell on every output pin. A
Macrocell_array
Standard for serial communication
laboratory automation or surveying, RS-232 devices continue to be used. Some types of programmable logic controllers, variable-frequency drives, servo
RS-232
User-controllable digital signal pin on an integrated circuit
microcontrollers and FPGAs allow a device to offload the task of bit-banging the GPIO to a separate device, the programmable input/output controller. Parallel
General-purpose_input/output
Integrated circuit device
reductions. Field-programmable RF – field programmable radio frequency devices Complex programmable logic device (CPLD) PSoC – programmable system-on-chip
Field-programmable analog array
Field-programmable_analog_array
Buffer in digital electronics
three-state logic. For example, the bidirectional I²C bus uses pull-up resistors on its two shared communication lines. When not transmitting, devices present
Three-state_logic
Small computer on a single integrated circuit
contains one or more processor cores along with memory and programmable input/output peripherals. Program memory in the form of NOR flash, OTP ROM, or ferroelectric
Microcontroller
Language for controlling network data forwarding
the target device, an externally running software, or even a cloud service. As many of the initial targets for P4 programs were used for simple packet switching
P4_(programming_language)
Synchronous serial communication interface
introduce devices with the ability to change their roles on the fly. Motorola's original specification (from the early 1980s) uses four logic signals,
Serial_Peripheral_Interface
Specialized computer hardware
more specialized processors such as programmable shaders in a GPU, applications implemented on field-programmable gate arrays (FPGAs), and fixed-function
Hardware_acceleration
Electronic timer used to detect and recover from computer malfunctions
describes a simple WDT: entity watchdog_timer is port ( CLK : in std_logic; -- clock INIT : in std_logic; -- initialize watchdog KICK : in std_logic; -- restart
Watchdog_timer
Programmable machine that processes data
The price, size, and complexity of computers can range from simple single-purpose devices like key fobs, microwave ovens, and remote controls up to supercomputers
Computer
Method of deriving conclusions
of deriving conclusions from premises. They are integral parts of formal logic, serving as the logical structure of valid arguments. If an argument with
Rule_of_inference
Branch of physics and electrical engineering
circuit (ASIC) Digital signal processor (DSP) Field-programmable gate array (FPGA) Field-programmable analog array (FPAA) System on chip (SOC) Electronic
Electronics
Type of integrated circuit
lot of components. Many early systems used some form of an early programmable logic array to create a video system; examples include the ZX Spectrum and
Video_display_controller
Computer system with a dedicated function
Generalized through software customization, embedded systems such as programmable logic controllers frequently comprise their functional units. The origins
Embedded_system
Next Byte Codes (NBC), (2007) is a simple assembly language used for programming Lego Mindstorms NXT programmable bricks. The NBC compiler produces NXT-compatible
List of educational programming languages
List_of_educational_programming_languages
Concept in computer science
In computer science, separation logic is an extension of Hoare logic, a way of reasoning about programs. It was developed by John C. Reynolds, Peter O'Hearn
Separation_logic
Hardware description language
is translated into the gates and wires that are mapped onto a programmable logic device such as a CPLD or FPGA, then it is the actual hardware being configured
VHDL
Electronic test instrument that measures multiple signals from a circuit
Field-programmable gate arrays have become a common measurement point for logic analyzers and are also used to debug the logic circuit. Logic Analyzers
Logic_analyzer
Profession
PLC technicians design, program, repair, and maintain programmable logic controller (PLC) systems used within manufacturing and service industries ranging
PLC_technician
Software that models a real phenomenon with a set of mathematical formulas
operation of a programmable logic controller (PLC), it is necessary to spend considerable time programming, testing, and debugging PLC programs. PLC systems
Simulation_software
Logic gate
NOR gate XNOR gate IMPLY gate Boolean algebra Logic gate Broesch, James D. (2012). Practical Programmable Circuits: A Guide to PLDs, State Machines, and
XOR_gate
System for reasoning about vagueness
Fuzzy logic is a form of many-valued logic in which the truth value of variables may be any real number between 0 and 1. It is employed to handle the concept
Fuzzy_logic
Process of starting a computer
(ROM), with its many variants, including mask-programmed ROMs, programmable ROMs (PROM), erasable programmable ROMs (EPROM), and flash memory, reduced the
Booting
of simple logic programs, Nature Nanotechnology, August, 2009. Tom Ran, Yehonatan Douek, Lilach Milo, Ehud Shapiro. A programmable NOR-based device for
Doctor_in_a_cell
Combinational digital circuit
In computing, an arithmetic logic unit (ALU) is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers
Arithmetic_logic_unit
Electrical circuit with active components
custom-designed logic circuits, known as application-specific integrated circuit (ASICs). Field-programmable gate arrays (FPGAs), chips with logic circuitry
Electronic_circuit
Four-terminal thyristor semiconductor device
terminal to initiate switching. The device was mainly used in electronic switching, timing, pulse-generation, and logic circuits during the 1960s and 1970s
Silicon-controlled_switch
Computer peripheral to collect telemetry data
with some BASIC (programming language) tasks. Modern RTUs typically support the IEC 61131-3 programming standard for programmable logic controllers. Since
Remote_terminal_unit
Series of transistor–transistor logic integrated circuits
output Schmitt trigger input Programmable logic device Pin compatibility R. M. Marston (31 October 1996). Digital Logic IC. Newnes. p. 21. ISBN 9780750630184
7400-series integrated circuits
7400-series_integrated_circuits
Act of placing two elements side by side
conjunction and (e.g. mother and father), many languages use simple juxtaposition ("mother father"). In logic, juxtaposition is a logical fallacy on the part of
Juxtaposition
System allowing a device to imitate another
of simpler fixed-point arithmetic operations that run on the integer arithmetic logic unit. Instruction set simulator in a high-level programming language:
Emulator
Programming language that uses first order logic
first-order logic, a formal logic. Unlike many other programming languages, Prolog is intended primarily as a declarative programming language: the program is
Prolog
General Purpose Interface Bus specification
could be implemented with some discrete logic or with a microcontroller. The hardware interface enabled devices made by different manufacturers to communicate
GPIB
Method of CPU communication with peripheral devices
and a peripheral device, such as a Parallel ATA storage device. Each data item transfer is initiated by an instruction in the program, involving the CPU
Programmed_input–output
Form of non-volatile memory used in computers and other electronic devices
using a mask. Programmable read-only memory (PROM), or one-time programmable ROM (OTP), can be written to or programmed via a special device called a PROM
Read-only_memory
Hacking targeting physical infrastructure
revealed in 2010 and specially targeted weaknesses in Programmable Logic Controllers (PLCs), devices in the SCADA category of systems. Though it was never
Cyber-kinetic_attack
System using algorithmic detection of electrical faults
In some solid-state relays, a simple microprocessor does some of the relay logic, but the logic is fixed and simple. For instance, in some time overcurrent
Numerical_relay
computing and programming logic. During the Middle Ages, several European philosophers made attempts to produce analog computer devices. Influenced by
History_of_computing
Devices leveraging piezoelectricity
carrier transport properties for fabricating new devices. Neil A Downie showed how simple it was to build simple demonstrations on a macro-scale using a sandwich
Piezotronics
The history of logic deals with the study of the development of the science of valid inference (logic). Formal logics developed in ancient times in India
History_of_logic
Molecule that performs a logical operation
or chemical inputs and a single output. The field has advanced from simple logic systems based on a single chemical or physical input to molecules capable
Molecular_logic_gate
Use of various control systems for operating equipment
inputs and outputs using simple programming. PLCs make use of programmable memory, storing instructions and functions like logic, sequencing, timing, counting
Automation
Topics referred to by the same term
Ball grid array pin grid array land grid array Processor array Programmable Array Logic (PAL), a systematic way to implement Boolean functions Reconfigurable
Array
Digital logic gate type
is being implemented using simple integrated circuit chips which contain only one gate type per chip. There are two logic gate symbols currently representing
OR_gate
Digital electronic circuit
It is an improvement on a simple encoder because it can handle all possible input combinations, but at the cost of extra logic. Applications of priority
Priority_encoder
Computer that uses ternary logic
ternary computer, also called trinary computer, is one that uses ternary logic (i.e., base 3) instead of the more common binary system (i.e., base 2) in
Ternary_computer
Form of digital logic family in integrated circuits
enhancement-load devices alone. This is partly because the depletion-mode MOSFETs can be a better current source approximation than the simpler enhancement-mode
Depletion-load_NMOS_logic
Design methodology for combinatorial logic integrated circuits
integrated circuit design, dynamic logic (or sometimes clocked logic) is a design methodology in combinational logic circuits, particularly those implemented
Dynamic logic (digital electronics)
Dynamic_logic_(digital_electronics)
1975 microprocessor
the PIC internally decoded the bus logic, but also added a very simple processor that could run its own programs to perform I/O and direct memory access
General_Instrument_CP1600
Engineering process for electronic hardware
standard cell normally represents a single logic gate, a diode or simple logic components such as flip-flops, or logic gates with multiple inputs. The use of
Integrated_circuit_design
Programmable Peripheral Interface chip
The Intel 8255 (or i8255) Programmable Peripheral Interface (PPI) chip was developed and manufactured by Intel in the first half of the 1970s for the Intel
Intel_8255
connect and control the programmable instruments the company manufactured. The introduction of digital controllers and programmable test equipment created
Automatic_test_equipment
Representation of a system using abstract graphic symbols
verification and simulation of the circuit under design. Programmable logic controllers (PLC) can be programmed using ladder diagrams. In electric power systems
Schematic
The history of computing hardware spans developments from early devices used for simple calculations to today's complex computers, encompassing advances
History_of_computing_hardware
Standard for computer data connections
Message pipes are typically used for short, simple commands to the device, and for status responses from the device, used, for example, by the bus control
USB
Measuring instruments which monitor and control a process
science of scientific instrument-making. Instrumentation can refer to devices as simple as direct-reading thermometers, or as complex as multi-sensor components
Instrumentation
Computer of the Saturn V rocket
holes were deliberately placed below the unit logic devices (ULD) to help conduct heat from the devices to the metal frames and thus the coolant walls
Launch Vehicle Digital Computer
Launch_Vehicle_Digital_Computer
Task of creating a processor
chips, but these are no longer used for CPUs. Programmable array logic and other programmable logic devices are also no longer used for CPUs in this role
Processor_design
Process to create executable computer programs
engineering design process. Programmable devices have existed for centuries. As early as the 9th century, a programmable music sequencer was invented
Computer_programming
Calculator designed to calculate problems in science, engineering, and mathematics
the page using simple formatting tools. The first scientific calculator that included all of the basic ideas above was the programmable Hewlett-Packard
Scientific_calculator
Israeli computer scientist
Tom; Douek, Yehonatan; Milo, Lilach; Shapiro, Ehud (2012). "A programmable NOR-based device for transcription profile analysis". Scientific Reports. 2 641
Ehud_Shapiro
H.T. Chua designed the first successful programmable logic device, the programmable array logic (PAL) device. His contacts in the semiconductor field
Datacube_Inc.
Component of a computer's CPU
direct the operation of the other units (memory, arithmetic logic unit and input and output devices, etc.). Most computer resources are managed by the CU.
Control_unit
Device that compares two voltages or currents
"ADCMP341: Dual 0.275% Comparator and Reference with Programmable Hysteresis". Analog Devices, Inc. Archived from the original on 2009-08-15. "Adding
Comparator
Control system architecture for supervision of machines and processes
covers sensors and actuators, which are monitored and controlled from programmable logic controllers, or a distributed control system (DCS), which interfaces
SCADA
Signal to a computer processor emitted by hardware or software
an external hardware device, e.g., an interrupt request (IRQ) line on a PC, or detected by devices embedded in processor logic (e.g., the CPU timer in
Interrupt
Series of CMOS logic integrated circuits
linear integrated circuits List of LM-series integrated circuits Programmable logic device Pin compatibility "1963: Complementary MOS Circuit Configuration
4000-series integrated circuits
4000-series_integrated_circuits
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