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The Personal System/2 Model 25 and its later submodels the 25 286 and 25 SX are IBM's lowest-end entries in the Personal System/2 (PS/2) family of personal computers. Like its sibling the Model 30, the Model 25 features an Industry Standard Architecture bus, allowing it to use expansion cards from its direct predecessors, the PC/XT and the PC/AT—but not from higher entries in the PS/2 line ...
A key punch room in the 1960s Hand-operated keypunch (manufactured by British ICT) (1960s) Most IBM keypunch and verifiers used a common electrical/mechanical design in their keyboards to encode the mechanical keystrokes. As a key was depressed, a link on the keystem tripped a corresponding set of bails at the top of the keyboard assembly.
In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. The key prevents relative rotation between the two parts and may enable torque transmission. For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in which the key fits ...
The Mercedes-Benz OM604 engine has an optional repair kit to help replace seals. The 1905 Gale Model A came with a repair kit. In aerospace, kits have been developed for repairing the thermal protection tiles on the Space Shuttle and to fix space suits. [1] An electronics repair kit including different resistors. Professionals who repair and ...
In the UK, the majority of the mobile locksmiths will have a dual key cutting machine on their van. The key duplication machine will be able to cut both cylinder and mortise keys, as these are the most popular types of keys in circulation. However, very few will carry a laser key cutting machine, which is sometimes needed to cut high security keys.
The Model 25 logic is built on IBM SLT modules mounted on pluggable cards, which are plugged into printed circuit boards. The boards are mounted on hinged metal gates, and are interconnected by flat cables. The Model 25 is the first IBM system to store its microcode in a rewritable memory, called the control storage. The control storage uses an ...
The HP-25 was a hand-held programmable scientific/engineering calculator made by Hewlett-Packard between early January 1975 and 1978. The HP-25 was introduced as a cheaper (US$195 MSRP) alternative to the ground-breaking HP-65. To reduce cost, the HP-25 omitted the HP-65's magnetic card reader, so it could only be programmed using the keyboard ...
Mitsubishi G4M2b Model 25, an experimental model of the Mitsubishi G4M medium bomber; Consolidated Model 25, a predecessor to the Consolidated P-30 fighter aircraft; Bellanca Model 25 Skyrocket, a prototype light airplane