Q-Bus

The Q-bus, also known as the LSI-11 Bus, is one of several bus technologies used with PDP and MicroVAX computer systems previously manufactured by the Digital Equipment Corporation of Maynard, Massachusetts. ^[1]

22 relations: Asynchronous communication, Bandwidth (computing), Bubble memory, Burst mode (computing), Bus (computing), Bus mastering, Byte addressing, Digital Equipment Corporation, Expansion card, Handshake (computing), Interrupt priority level, Magnetic-core memory, Massachusetts, Master–slave (technology), Maynard, Massachusetts, Memory-mapped I/O and port-mapped I/O, Programmed Data Processor, Timeout (computing), Unibus, VAX, Vectored interrupt, 1801 series CPU.
DEC hardware

Asynchronous communication

In telecommunications, asynchronous communication is transmission of data, generally without the use of an external clock signal, where data can be transmitted intermittently rather than in a steady stream.

See Q-Bus and Asynchronous communication

Bandwidth (computing)

In computing, bandwidth is the maximum rate of data transfer across a given path.

See Q-Bus and Bandwidth (computing)

Bubble memory

Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles or domains, each storing one bit of data.

See Q-Bus and Bubble memory

Burst mode (computing)

Burst mode is a generic electronics term referring to any situation in which a device is transmitting data repeatedly without going through all the steps required to transmit each piece of data in a separate transaction. Q-Bus and Burst mode (computing) are computer buses.

See Q-Bus and Burst mode (computing)

Bus (computing)

In computer architecture, a bus (historically also called data highway or databus) is a communication system that transfers data between components inside a computer, or between computers. Q-Bus and bus (computing) are computer buses.

See Q-Bus and Bus (computing)

Bus mastering

In computing, bus mastering is a feature supported by many bus architectures that enables a device connected to the bus to initiate direct memory access (DMA) transactions. Q-Bus and bus mastering are computer buses.

See Q-Bus and Bus mastering

Byte addressing

Byte addressing in hardware architectures supports accessing individual bytes.

See Q-Bus and Byte addressing

Digital Equipment Corporation

Digital Equipment Corporation (DEC), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s.

See Q-Bus and Digital Equipment Corporation

Expansion card

In computing, an expansion card (also called an expansion board, adapter card, peripheral card or accessory card) is a printed circuit board that can be inserted into an electrical connector, or expansion slot (also referred to as a bus slot) on a computer's motherboard (see also backplane) to add functionality to a computer system. Q-Bus and expansion card are computer buses.

See Q-Bus and Expansion card

Handshake (computing)

In computing, a handshake is a signal between two devices or programs, used to, e.g., authenticate, coordinate.

See Q-Bus and Handshake (computing)

Interrupt priority level

The interrupt priority level (IPL) is a part of the current system interrupt state, which indicates the interrupt requests that will currently be accepted.

See Q-Bus and Interrupt priority level

Magnetic-core memory

In computing, magnetic-core memory is a form of random-access memory.

See Q-Bus and Magnetic-core memory

Massachusetts

Massachusetts (script), officially the Commonwealth of Massachusetts, is a state in the New England region of the Northeastern United States.

See Q-Bus and Massachusetts

Master–slave (technology)

Master–slave is a model of asymmetric communication or control where one device or process (the master) controls one or more other devices or processes (the slaves) and serves as their communication hub.

See Q-Bus and Master–slave (technology)

Maynard, Massachusetts

Maynard is a town in Middlesex County, Massachusetts, United States.

See Q-Bus and Maynard, Massachusetts

Memory-mapped I/O and port-mapped I/O

Memory-mapped I/O (MMIO) and port-mapped I/O (PMIO) are two complementary methods of performing input/output (I/O) between the central processing unit (CPU) and peripheral devices in a computer (often mediating access via chipset).

See Q-Bus and Memory-mapped I/O and port-mapped I/O

Programmed Data Processor

Programmed Data Processor (PDP), referred to by some customers, media and authors as "Programmable Data Processor," is a term used by the Digital Equipment Corporation from 1957 to 1990 for several lines of minicomputers. Q-Bus and Programmed Data Processor are DEC hardware and minicomputers.

See Q-Bus and Programmed Data Processor

Timeout (computing)

In telecommunications and related engineering (including computer networking and programming), the term timeout or time-out has several meanings, including.

See Q-Bus and Timeout (computing)

Unibus

The Unibus was the earliest of several computer bus and backplane designs used with PDP-11 and early VAX systems manufactured by the Digital Equipment Corporation (DEC) of Maynard, Massachusetts. Q-Bus and Unibus are computer buses and DEC hardware.

See Q-Bus and Unibus

VAX

VAX (an acronym for Virtual Address eXtension) is a series of computers featuring a 32-bit instruction set architecture (ISA) and virtual memory that was developed and sold by Digital Equipment Corporation (DEC) in the late 20th century. Q-Bus and VAX are minicomputers.

See Q-Bus and VAX

Vectored interrupt

In computer science, a vectored interrupt is a processing technique in which the interrupting device directs the processor to the appropriate interrupt service routine.

See Q-Bus and Vectored interrupt

1801 series CPU

The 1801 series CPUs were a family of 16-bit Soviet microprocessors based on the indigenous microarchitecture cores, but binary compatible with DEC's PDP-11 machines.

See Q-Bus and 1801 series CPU

References

[1] https://en.wikipedia.org/wiki/Q-Bus

Also known as LSI-11 bus, LSI11 bus, Q bus, QBUS, МПИ.

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