CPM

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cpm

(physics)

CPM

(systems engineering)

cpm

Abbr. for “cycles per minute.”

critical path method, CPM

A system of project planning, scheduling, and control which combines all relevant information into a single master plan, permitting the establishment of the optimum sequence and duration of operations; the interrelation of all the efforts required to complete a construction project are shown; an indication is given of the efforts which are critical to timely completion of the project.

CPM

CPM

(1) (Critical Path Method) A project management planning and control technique. The critical path is the series of tasks that have no built-in slack time. Any one of those tasks that takes longer to complete lengthens the total project time.

(2) (Cost Per Mille/Milli - per thousand) CPM is typically the price paid for a banner ad on 1,000 Web pages. For example, a USD $25 CPM means each ad costs one quarter of one cent per impression. See eCPM, RPM and banner ad.

(3) (Copies Per Minute) The rated speed of a printer or copy machine.

(4) (CP/M) (Control Program for Microprocessors) A single user operating system for the 8080 and Z80 microprocessors. Created by Gary Kildall of Digital Research, CP/M had its heyday in the early 1980s, and although unsophisticated, was a major contributor to the personal computer revolution. However, CP/M computer vendors never standardized a floppy disk or screen format, requiring software publishers to create and stock multiple CP/M versions. After entering this uncontrolled market in 1981, IBM readily set the personal computer standards with its PC, and some of those standards remain to this day (see IBM PC).

CP/M Might Have Become DOS
Although IBM asked Kildall to provide the operating system for its new PC, he did not agree to IBM's demands. IBM went to Microsoft, which purchased QDOS from Seattle Computer Products and turned it into PC-DOS and MS-DOS. The rest is history. The irony is that Microsoft's DOS was modeled after CP/M. Digital Research was later acquired by Novell and then Caldera, which later merged with The SCO Group.


The Otrona Attache
Introduced in 1982, the Attache was the smallest CP/M portable computer on the market. Weighing 17 pounds and priced at USD $5,000, the Attache was an elite computer for prosperous families. (Image courtesy of Robin Bartlett.)







CP/M News Clips in Its Heyday
CP/M was the only OS that ran on microcomputers from different vendors. With a Z80 card, it even ran on the Apple II. A major contributor to the personal computer revolution, CP/M motivated IBM to create the PC; the most successful desktop platform in history.
References in periodicals archive ?
Anterior capsulotomy and continuous passive motion in the treatment of post-traumatic flexion contracture of the elbow.
The biological effect of continuous passive motion on the healing of full-thickness defects in articular cartilage.
Clinical application of basic research on continuous passive motion for disorders and injuries of synovial joints: a preliminary report of a feasibility study.
Continuous passive motion as an adjunct to active exercises in early rehabilitation following total knee arthroplasty-a randomized controlled trial.
Beaupre LA, Davies DM, Jones CA, and Cinats JG (2001): Exercise combined with continuous passive motion or slider board therapy compared with exercise only: A randomised controlled trial of patients following total knee arthroplasty.
The rehabilitation equipment is capable of achieving continuous passive motion, by means of a pneumatic muscle actuated system.
In addition, a continuous passive motion device is applied.
My knee was hooked up to a Continuous Passive Motion machine hours after surgery to prevent scar tissue," recalls Lam.
For more severe injuries, surgical intervention is required and ankle Continuous Passive Motion (CPM) is indicate in the early post-operative or post-casting period to facilitate relatively painless motion, maintain or increases the ranges of motion, recovery tissues and promote faster healing.
The experience with continuous passive motion (CPM) machines is an example of the phenomenon above.
Second, hand in hand with that increased clinical support often comes an increase in the use of sophisticated medical devices -- ventilators, oxygen concentrators, nebulizers, pulse oximeters, ECG monitors, telemetry, defibrillators, electric and specialty beds, continuous passive motion exercisers, portable blood chemistry analyzers and many other products.

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