2008 KCSE ELECTRICITY PAPER 1 MS
... Choke: induces a high voltage which enables a discharge to be initiated between the electrodes of the tube when the starter contacts open. It also keeps the discharge and lamp current at a steady value when lamp is in operation. Flourescent Powder: converts the ultra violet light emitted by the disc ...
... Choke: induces a high voltage which enables a discharge to be initiated between the electrodes of the tube when the starter contacts open. It also keeps the discharge and lamp current at a steady value when lamp is in operation. Flourescent Powder: converts the ultra violet light emitted by the disc ...
Figure 1.4
... Non-volatile memory – holds its value after the power is off – Example: magnetic storage Read-only memory (ROM) – never changes – Examples: flash memory, compact disks ...
... Non-volatile memory – holds its value after the power is off – Example: magnetic storage Read-only memory (ROM) – never changes – Examples: flash memory, compact disks ...
Instructor: Tor Aamodt
... financial backing (Babbage worked on design until his death in 1871). ...
... financial backing (Babbage worked on design until his death in 1871). ...
What is a Computer?
... This term is also used in the different advancements of new computer technology. There are five generations of computer. Each generation is characterized by major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, and more powe ...
... This term is also used in the different advancements of new computer technology. There are five generations of computer. Each generation is characterized by major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, and more powe ...
Circuits II ENGG1015 Tutorial
... Goldberg Machine is a machine that has at least four distinct stages with its own triggering mechanisms. In addition, the machine is started with pushing a button/switch, and is ended by popping a balloon. In a stage, an electrical sensor is triggered by an external mechanical input, the sensor then ...
... Goldberg Machine is a machine that has at least four distinct stages with its own triggering mechanisms. In addition, the machine is started with pushing a button/switch, and is ended by popping a balloon. In a stage, an electrical sensor is triggered by an external mechanical input, the sensor then ...
Read more... - Wieland Electric
... By measuring the back EMF of these machines, any motion of the motor can be detected. For a safety application, as long as there is a non-slipping mechanical linkage between the motor and the rotating hazards, the machine’s motion can be safely monitored. Examples of slipping linkages include Eddy c ...
... By measuring the back EMF of these machines, any motion of the motor can be detected. For a safety application, as long as there is a non-slipping mechanical linkage between the motor and the rotating hazards, the machine’s motion can be safely monitored. Examples of slipping linkages include Eddy c ...
Chapters_0_5 - SIUE Computer Science
... In 1957, IBM released the Fortran programming language (the IBM Mathematical Formula Translating System), designed to facilitate numerical computation and scientific computing. In 1958, a committee of European and American scientists developed ALGOL, the Algorithmic Language, which pioneered the lan ...
... In 1957, IBM released the Fortran programming language (the IBM Mathematical Formula Translating System), designed to facilitate numerical computation and scientific computing. In 1958, a committee of European and American scientists developed ALGOL, the Algorithmic Language, which pioneered the lan ...
Manchester Mark 1
The Manchester Mark 1 was one of the earliest stored-program computers, developed at the Victoria University of Manchester from the Small-Scale Experimental Machine (SSEM) or ""Baby"" (operational in June 1948). It was also called the Manchester Automatic Digital Machine, or MADM. Work began in August 1948, and the first version was operational by April 1949; a program written to search for Mersenne primes ran error-free for nine hours on the night of 16/17 June 1949.The machine's successful operation was widely reported in the British press, which used the phrase ""electronic brain"" in describing it to their readers. That description provoked a reaction from the head of the University of Manchester's Department of Neurosurgery, the start of a long-running debate as to whether an electronic computer could ever be truly creative.The Mark 1 was to provide a computing resource within the university, to allow researchers to gain experience in the practical use of computers, but it very quickly also became a prototype on which the design of Ferranti's commercial version could be based. Development ceased at the end of 1949, and the machine was scrapped towards the end of 1950, replaced in February 1951 by a Ferranti Mark 1, the world's first commercially available general-purpose electronic computer.The computer is especially historically significant because of its pioneering inclusion of index registers, an innovation which made it easier for a program to read sequentially through an array of words in memory. Thirty-four patents resulted from the machine's development, and many of the ideas behind its design were incorporated in subsequent commercial products such as the IBM 701 and 702 as well as the Ferranti Mark 1. The chief designers, Frederic C. Williams and Tom Kilburn, concluded from their experiences with the Mark 1 that computers would be used more in scientific roles than in pure mathematics. In 1951, they started development work on Meg, the Mark 1's successor, which would include a floating point unit.