TECHNICAL UNIVERSITY OF KENYA SCHOOL OF ENGINEERING SCIENCE AND TECHNOLOGY ELECTRICAL AND ELECTRONICS DEPARTMENT P.O Box 52428-00200 NAIROBI FINAL YEAR PROJECT PROJECT TITLE: PHASE-ANGLE CONTROL OF SCR USING AT89C51 BY Yamame Gerrishom Kennedy ADMISSION NO: 109/01670 SUPERVISOR: MR. BONIFACE CHOMBA ` May 20th, 2014, TABLE OF CONTENTS. DECLARATION......................................................................................................................................
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meanings who uses sign language. Meanwhile, translator devices are very expensive and not everyone can buy or even hired a translator also needed a high cost. So, from this union of flex sensor and accelerometer with artificial neural network backpropagation method resulted a sign language translator device which text is as the output on computer that more economic with succeed percentage by 99.2% and failure percentage less by 1%. Moreover, this device can be use as learning and introduction media to
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Central Processing Unit (CPU): Is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions. The term has been used in the computer industry at least since the early 1960s.Traditionally, the term "CPU" refers to a processor and its control unit (CU), distinguishing these core elements of
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school, and play. The one gigabyte ATI Mobility Radeon™ HD 5650 switchable graphics card brings games and applications to life. Currently the input devices for my system are a wireless mouse, backlit keyboard, digital camera, microphone, wireless card with Bluetooth, portable one terabyte (TB) hard drive, fingerprint reader, and a scanner. The output devices include a 15.6-inch 1366 x 768 resolution monitor, printer, and speakers. The MacBook Pro Notebook includes an Intel Core i5 processor with
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the most practical approach. Electronic sensors and microprocessor-based energy controllers will contribute to cost savings by regulating light output according to available daylight and lamp life span [2]. A sensitive electronic control system is suggested that can take care of automatic light activation for security purposes [2]. The GLE device power the lighting circuit based on the built in relay system without have to ‘ON’ the switch [3]. This work is supported in part
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Processor. This processor runs at 2.26 Hz with only 3MB shared level 2 cache. Input Devices The input devices on my MacBook Pro includes a wireless USB mouse and built in touch mouse pad, and built in keyboard. It also includes built in camera and stereo speakers. In addition, my MacBook Pro includes a built in Airport for extreme wireless networking. Output Devices The output devices of my MacBook Pro include a 13.3 inch LED-backlit glossy widescreen display and
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or "brains" of the computer | Monitor | An output display device (looks similar to a TV) in a computer system. You see information on the monitor's screen. | | Screen | The viewing area on a monitor or the information or image displayed. | | | | Disk Drive | A device that reads data from (input) or records data onto a disk for storage (output). | Floppy | Floppy Drive | . 3-1/2" Floppy Disk | Hard Drive | The main device that a computer uses to store information. Most
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specialized electronic device based on one or more microprocessors that is used to control industrial machines. 3.6.5 Billion dollar business and is growing 20% each year. 4. Similarities: Motherboard, processor, memory, expansion slot. Differences: PLCs do not have a removable or fixed drives; PLCs do not have a monitor, but have a HMI; PLCs only perform one task. 5. Symbols in the relay logic represent actual components and contacts present in the system, but the input/output instruction in PLC
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BIOS The basic input-output system is the component that checks your computer’s components and causes the operating system to start. CMOS Complementary Metal Oxide Semiconductor is a chip whose configuration is controlled by a setup program. CPU The Central Processing Unit is a chip, located on the motherboard, which performs mathematical calculations and logic functions. Hardware Refers to all the pieces of physical equipment that make up a computer system. Input Data entered
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general purpose microprocessor, the microcontroller typically integrates additional elements such as read-write memory for data storage, read-only memory, such as flash memory for code storage and permanent data storage memory, peripheral devices, and input/output interfaces. Microcontrollers often operate at very low speed compared to modern day microprocessors, but this is adequate for many typical applications. They consume relatively little power (milliwatts), and will generally have the ability
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