Transistor–transistor logicTransistor–transistor logic (TTL) is a logic family built from bipolar junction transistors (BJTs). Its name signifies that transistors perform both the logic function (the first "transistor") and the amplifying function (the second "transistor"), as opposed to earlier resistor–transistor logic (RTL) and diode–transistor logic (DTL).
Application-specific integrated circuitAn application-specific integrated circuit (ASIC) is an integrated circuit (IC) chip customized for a particular use, rather than intended for general-purpose use, such as a chip designed to run in a digital voice recorder or a high-efficiency video codec. Application-specific standard product chips are intermediate between ASICs and industry standard integrated circuits like the 7400 series or the 4000 series.
CMOSComplementary metal–oxide–semiconductor (CMOS ) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips, and other digital logic circuits.
Acorn ElectronThe Acorn Electron (nicknamed the Elk inside Acorn and beyond) was introduced as a lower-cost alternative to the BBC Micro educational/home computer, also developed by Acorn Computers, to provide many of the features of that more expensive machine at a price more competitive with that of the ZX Spectrum. It has 32 kilobytes of RAM, and its ROM includes BBC BASIC II together with the operating system.
Semiconductor device fabricationManufacturing process used to create integrated circuitsA semiconductor device manufacturing facility at HP LabsSemiconductor device fabrication is the process used to manufacture semiconductor devices, typically integrated circuits (ICs) such as microprocessors, microcontrollers, and memories (such as RAM and flash memory).
BBC MicroSeries of British microcomputers by AcornThe BBC Microcomputer System, or BBC Micro, is a family of microcomputers developed and manufactured by Acorn Computers in the early 1980s as part of the BBC's Computer Literacy Project. Launched in December 1981, it was showcased across several educational BBC television programmes, such as The Computer Programme (1982), Making the Most of the Micro and Computers in Control (both 1983), and Micro Live (1985).
Home computerHome computers were a class of microcomputers that entered the market in 1977 and became common during the 1980s. They were marketed to consumers as affordable and accessible computers that, for the first time, were intended for the use of a single, non-technical user.
FerrantiFerranti International PLC or simply Ferranti was a UK-based electrical engineering and equipment firm that operated for over a century, from 1885 until its bankruptcy in 1993. At its peak, Ferranti was a significant player in power grid systems, defence electronics, and computing, and was once a constituent of the FTSE 100 Index.
ZX SpectrumThe ZX Spectrum (UK: ) is an 8-bit home computer developed and marketed by Sinclair Research. The Spectrum played a pivotal role in the history of personal computers and video games, especially in the United Kingdom. It was one of the all-time bestselling British computers with over five million units sold. It was first released in Britain on 23 April 1982 with releases in some other regions, including West Germany and the United States, after that year.
Flip-flop (electronics)In electronics, flip-flops and latches are circuits that have two stable states that can store state information – a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and will output its state (often along with its logical complement). It is the basic storage element in sequential logic.
NAND gateIn digital electronics, a NAND gate (NOT AND gate) is a logic gate whose output is false only if all its inputs are true; thus its output is complement to that of an AND gate. A LOW (0) output results only if all the inputs to the gate are HIGH (1); if any input is LOW (0), a HIGH (1) output results. A NAND gate is made using transistors and junction diodes.
MOSFETType of field-effect transistorTwo power MOSFETs in D2PAKsurface-mount packages.*As an Amazon Associate I earn from qualifying purchases.