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(computer science)
An instruction that causes the contents of a specific storage location in a computer to be displayed.


The command in most microcomputer BASICs for reading memory contents (a byte) at an absolute address. POKE is the corresponding command to write a value to an absolute address.

This is often extended to mean the corresponding constructs in any High Level Language.

Much hacking on small microcomputers without MMUs consists of "peek"ing around memory, more or less at random, to find the location where the system keeps interesting stuff. Long (and variably accurate) lists of such addresses for various computers circulate (see interrupt list). The results of "poke"s at these addresses may be highly useful, mildly amusing, useless but neat, or total lossage (see killer poke).

Since a real operating system provides useful, higher-level services for the tasks commonly performed with peeks and pokes on micros, and real languages tend not to encourage low-level memory groveling, a question like "How do I do a peek in C?" is diagnostic of the newbie. Of course, operating system kernels often have to do exactly this; a real C hacker would unhesitatingly, if unportably, assign an absolute address to a pointer variable and indirect through it.
References in periodicals archive ?
In vitro and in vivo evaluation of bone morphogenetic protein- 2 (BMP-2) immobilized collagen-coated polyetheretherketone (PEEK).
Tenders invited for Polyetheretherketone (peek) plates
Data from a study comparing medical device surface technology company Titan Spine's proprietary surface technology to polyetheretherketone have now been published in the March 15 print issue of Spine, the company said on Monday.
Compared to competitive materials such as polyetheretherketone (PEEK), ULTEM 9085 resin delivers compliance with FAA FAR 25.
Its good flow characteristics have also made it possible to increase the glass fibre content beyond that achievable with conventional PESU grades and BASF says it is a strong - and economical - alternative to polyetheretherketone.
following its management buyout last year from ICI PLC of England, will be to provide a full range of polyetheretherketone (PEEK) grades to molders, extruders, and compounders by tailoring properties of this high-performance thermoplastic to specific niche applications.
The dedicated site brings together key component technologies such as medical balloons, multilayer extrusions and reinforced shafts with leading-edge materials including polyimide and polyetheretherketone.
Polyamide-imide Torlon, polyetheretherketone Primospire and self-reinforced polyphenylene Primospire are the most used ultra-polymers for these applications.
Solidur first learned about PEEK, which stands for polyetheretherketone, when it was a customer of a company where, coincidentally, Ehlke worked before he joined Victrex.