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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).
Tewaria, Venkatramanb Solid particle erosion behavior of various Polyetheretherketone composites 5 February 2003.
The Meldin[R] 5000 series based on polyetheretherketone (PEEK) belongs to the Meldin[R] HT product family, which includes other high performance, polymer-based custom thermoplastic solutions.
By making the blades of the retractor from polyetheretherketone, Life Instruments made them radiolucent, or invisible under X-ray.
The TF-3B MicroPower Omnibus II Flasher/Lampchanger from Tideland Signal Corp, Houston, features a turret made of 30 per cent glass-filled KetaSpire KT-880 polyetheretherketone (Peek) resin from Solvay Advanced Polymers, LLC for high-heat resistance and exceptional dimensional stability.
Degussa AG, Dusseldorf, Germany, is said to have further strengthened its marketing activities for polyetheretherketone (PEEK).
Combined with a polyetheretherketone (PEEK) body, this design guarantees valves will perform in harsh liquid and gaseous media such as bleach, acids, and chlorinated solvents.
The immediate concern is short supply of polyetheretherketone (PEEK) resin, whose sole commercial-scale producer is Victrex PLC in the U.
He will be responsible for the sales efforts of Titan Spine's line of specialized Endoskeleton[R] interbody fusion devices, which features the Company's proprietary nano surface technology that has been shown to promote a superior bone formation response when compared to other common interbody implant materials such as 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.