Hence the SECD machine is often presented in a more detailed form, such as Peter Henderson's Lispkit Lisp compiler, which has been distributed since 1980.

The SECD machine is stack-based.

Obviously, specific implementations of the SECD structure can implement the stack as a canonical stack structure, so improving the overall efficiency of the virtual machine, provided that a strict bound be put on the dimension of the stack.

The memory organization of the SECD machine is similar to the model used by most functional language interpreters: a number of memory cells, each of which can hold either an atom ( a simple value, for example 13 ), or represent an empty or non-empty list.

* SECD machine, ISWIM, Lispkit Lisp

* SECD abstract machine

Peter J. Landin defined the term closure in 1964 as having an environment part and a control part as used by his SECD machine for evaluating expressions.

* SECD machine

The operational semantics of ISWIM are defined using Landin's SECD machine and use call-by-value, that is eager evaluation.

Operational semantics may define an abstract machine ( such as the SECD machine ), and give meaning to phrases by describing the transitions they induce on states of the machine.

* SECD machine

* Archive of old LispKit LISP code and files, plus C implementation of SECD machine

Such CPUs include some drum memory computers, the SECD machine, and the RTX 32P.

# REDIRECT SECD machine

An SECD machine-based implementation written in an ALGOL variant was published by the developer Peter Henderson in 1980.

The child of this problem was Mr. Brown's famous Serial No. 1 Universal Milling Machine, the archtype from which is descended today's universal knee-type milling machine used throughout the world.

The original machine, bearing its famous serial number, is still on exhibition at the Brown & Sharpe Precision Center in Providence.

Recently added is the Brown & Sharpe turret drilling machine which introduces the company to an entirely new field of tool development.

This machine, operating at speeds up to 350,000 revolutions per minute, is believed to provide one of the fastest mechanical operations in industry today.

A relatively simple switching arrangement reverses the cycle so that the machine literally runs backward, and the heat is extracted from outdoor air and turned indoors.

Now, the machine has been improved to a point where it is generally more economical than oil heat at temperatures down to 15 degrees.

The body is a heat machine, and 20 to 25 guests can easily double your cooling load.

A BTU is a unit of heat, and the BTU rating of a conditioner refers to how much heat your machine can pump out of your house in an hour.

Hard-surface cleaning in household application is represented by two classes of alkaline products: ( 1 ) the formulations made expressly for machine dishwashers, and ( 2 ) the general-purpose cleaners used for walls and woodwork.

The major training need of a new industrial plant is a short period of pre-employment training for a large number of semi-skilled machine operators.

The one- or two-digit number of the index word or electronic switch was used in the operand of a symbolic machine instruction to specify indexing or as a parameter which is always an index word or electronic switch, e.g., 3.

The resident staff is large and consists of professional assistants, graduate students, abstractors, librarian, technical editor, machine operators, secretarial help, and others.

The suds box drain is arranged at the start to deliver into the raised main drain pipe ( thus returning suds to soap box ) and the machine is started.

The machine is equipped with a pipe for injecting live steam that is capable of raising the temperature of water at an eight-inch level from 110-degrees to 140-degrees-F ( 38*0 to 60*0C. ) in less than two minutes.

It is not through space nor time that the time machine most approved by science fiction must travel for a visit to the permanent prehistoric past, or the ever-existent past-fantasy future.

If an expensive and specialized piece of machinery is needed -- such as a spray rig, a combine, or a binder -- it is better to pay someone with a machine to do the work.

Of the two, Porter is justly the better known, for he went far beyond the vital finding of fiction for films to take the first step toward fashioning a language of film, toward making the motion picture the intricate, efficient time machine that it has remained since, even in the most inept hands.

But humans can do something equally useful, in the case of certain enumerably infinite sets: They can give explicit instructions for determining the nth member of the set, for arbitrary finite n. Such instructions are to be given quite explicitly, in a form in which they could be followed by a computing machine, or by a human who is capable of carrying out only very elementary operations on symbols.

Gurevich: "... Turing's informal argument in favor of his thesis justifies a stronger thesis: every algorithm can be simulated by a Turing machine ... according to Savage, an algorithm is a computational process defined by a Turing machine ".

There is a wide variety of representations possible and one can express a given Turing machine program as a sequence of machine tables ( see more at finite state machine, state transition table and control table ), as flowcharts ( see more at state diagram ), or as a form of rudimentary machine code or assembly code called " sets of quadruples " ( see more at Turing machine ).

He was highly influential in the development of computer science, giving a formalisation of the concepts of " algorithm " and " computation " with the Turing machine, which can be considered a model of a general purpose computer.

* LinguaSys, provides highly customized hybrid machine translation that can go from any language to any language.

Formulae for the basic dimensions of turbine parts are well documented and a highly efficient machine can be reliably designed for any fluid flow condition.

Since 2009, Sentinel has offered a machine described as a word processor, but in actuality it is more accurately a highly specialised microcomputer, used for accounting and publishing.

It relies on a virtual machine to be secure and highly portable.

* Mac-10 ( Military Armament Corporation Model 10, officially the M10 ), a highly compact, blowback operated machine pistol

To keep the batting from shifting, a patchwork or pieced quilt is often quilted by hand or machine using a running stitch in order to outline the individual shapes that make up the pieced top, or the quilting stitches may be random or highly ordered overall patterns that contrast with the patchwork composition.

By highly pipelining math instructions with purpose-built instructions and hardware, math processing is dramatically improved in a machine that was otherwise slower than a 7600.

For example, Emacs Lisp is compiled to bytecode, which is a highly compressed and optimized representation of the Lisp source, but is not machine code ( and therefore not tied to any particular hardware ).

In machine learning, the environment is typically formulated as a Markov decision process ( MDP ), and many reinforcement learning algorithms for this context are highly related to dynamic programming techniques.

The machine construction industry consists primarily of a highly developed military-industrial complex of large scale aircraft and ship building enterprises.

Within the camp was everything imaginable to run a large oil and gas company: a rail spur from the line running through Taft, steel and timber for derrick construction and maintenance, pipe, valves, numerous offices, an expansive and highly specialized machine shop, a plethora of supply shops, the car and truck fleet, bunkhouses for workers, and dozens of company homes for employees.

Non-compatible machines highly inspired by BESK were SMIL made for the University of Lund, SAABs räkneautomat SARA, " SAAB's calculating machine ", and DASK made in Denmark.

The composition highly differed from Radiohead's earlier work, as it featured neither guitar, piano, nor drums, but electric piano, drum machine and computer manipulations of Yorke's voice.

The newer toolsets increased the performance of the machine by up to 10 %, due to the fact that less had to be loaded from disk and their highly optimized routines compared to the older toolsets ( pre-GS / OS based ).

Wolframite was highly valued as the main source of the metal tungsten, a strong and quite dense material with a high melting temperature used for electric filaments and armor-piercing ammunition, as well as hard tungsten carbide machine tools.

This is not the only method of triple buffering available, but is the most prevalent on the PC architecture where the speed of the target machine is highly variable.

The result is an uneven blend of technologies, in which the highly advanced ( interstellar travel ) mixes with the contemporary ( machine guns, internal combustion engines ) and even primitive.

The Roland TR-808 drum machine was noted for its distinctive cowbell sound, which sounded almost nothing like an actual cowbell ; the sound was highly electronic with a sharp, short decay.

A program could be used to generate hundreds of pages of highly compressed, pure black-or huge volumes of relevant-looking, original, non-repeating high-black-density junk, just as effective but far more difficult to counteract-and send them very quickly to the target fax machine.

As a Lincoln Republican and a tenured, highly respected captain of Chicago's Sixth Ward black Republican machine, Webster was a stern, but gregarious leader of men who was well connected throughout the Chicago politic.

The machine guns available for aircraft during the First World War were not highly accurate at longer ranges.