In computing‚ an input device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance. Examples of input devices include keyboards‚ mice‚ scanners‚ digital cameras and joysticks. Many input devices can be classified according to: * modality of input (e.g. mechanical motion‚ audio‚ visual‚ etc.) * the input is discrete (e.g. key presses) or continuous (e.g. a mouse’s
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ardiunoSTEP back • Review of STEP Arduino Facts • Microcontroller ATmega328 • Digital I/O Pins 14 (of which 6 provide PWM output) • Analog Input Pins 6 bootloader • Flash Memory 32 KB (ATmega328) of which 0.5 KB used by • SRAM 2 KB (ATmega328) • EEPROM 1 KB (ATmega328) • Clock Speed 16 MHz What is a microcontroller? a) A small microprocessor b) A microprocessor with built in memory and other components in the same chip c) A full computer system on a chip with limited capabilities
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FEEDBACK AMPLIFIER FEED BACK: The process of applying a fraction of output energy of some device back to the input is known as feedback. FEEDBACK AMPLIFIER: The amplifier using feed back process is called feedback amplifier. TYPES OF FEEDBACK AMPLIFIER: There are two types of feedback amplifier: a)Positive feedback amplifier b)Negative feedback amplifier POSITIVE FEEDBACK AMPLIFIER: >The amplifier in which feedback energy is applied in the same polarity or in same phase is called
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Peter Norton’s Introduction to Computers‚ 6e End of Chapter Solutions Chapter 3 Chapter 3; Lesson A Solutions Key Term Quiz 1. In computer use‚ the skill of typing is often referred to as _________________. 2. IBM-compatible PCs have 10 or 12 _________________ keys. 3. In many programs‚ an on-screen symbol called a(n) __________________ or a(n) _________________ shows you where you are in a document. 4. A(n) _________________ is a temporary storage area that holds data until the CPU is
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calculated and executed by this microcontroller. The ports of the second microcontroller has been completely used for the connection of the peripherals and in order to in co-operate the 7 DC geared motors two CD4051 3 input multiplexer is used. Based on combination of the 3 inputs of the multiplexer the motors movement are controlled. The detailed explanation of the circuit is give in the preceding paragraphs. Peripherals and brief summary of the 8051 microcontroller. TFRH is a microcontroller
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(CPU) of a computer system. A central processing unit (CPU)‚ also referred to as a central processor unit‚ is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical‚ logical‚ and input/output operations of the system. In the computer industry‚ the terms computer and CPU are often used interchangeably. Computing power starts with the most limited microcomputers which are laptop computers‚ netbook computers‚ PDAs and cell phones
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UNIT II- Peripherals and Interfacing PIO 8255 The parallel input-output port chip 8255 is also called as programmable peripheral input-output port. The Intel’s 8255 is designed for use with Intel’s 8-bit‚ 16-bit and higher capability microprocessors. It has 24 input/output lines which may be individually programmed in two groups of twelve lines each‚ or three groups of eight lines. The two groups of I/O pins are named as Group A and Group B. Each of these two groups contains a subgroup of eight
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9 4.5MHz‚ BiMOS Operational Amplifier with MOSFET Input/Bipolar Output The CA3140A and CA3140 are integrated circuit operational amplifiers that combine the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip. The CA3140A and CA3140 BiMOS operational amplifiers feature gate protected MOSFET (PMOS) transistors in the input circuit to provide very high input impedance‚ very low input current‚ and high speed performance. The CA3140A and CA3140
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Campus: Kenya Methodist University. Branch: Nairobi. Name: Ann Mwende Thyaka. Adm No: HND- 1- 2026 -1 2013. Course: Human Nutrition and Dietetics. Unit: Computer Applications Unity Code: COMP 100 Assignment 1. 1. Convert the following numbers as required a) 9537.375 - 10 -------------------- --------------- X2 = 100110111111.11111101 b) DB97AF – 16 ---------------------------------------X10 = 14391207 c) 675 – 8 --------------------------------------------- X 2 = 110111101 2. Elaborate
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high gain‚ low noise figure‚ good input and output matching and unconditional stability at the lowest possible current draw from the amplifier. • Although Gain‚ Noise Figure‚ Stability‚ Linearity and input and output match are all equally important‚ they are interdependent and do not always work in each other’s favor. • Carefully selecting a transistor and understanding parameter trade-offs can meet most of these conditions. • Low noise figure and good input match is really simultaneously
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