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Laser Security Alarm

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You should know that lasers are quite different from other sources of light in several ways. For a security system, two features are vital. While if you are using a light bulb or carrying a flashlight the light will fan out, a laser beam remains a narrow beam. Also, laser light will always be just one color. Due to the fact that laser light doesn't fan out, it can be transmitted a long distance and still hold enough energy within that small space to set off the detector of the security system.

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Web Development

2020-03-28T21:42:00.001+05:30

Bloody Face (Water Color).

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PBSSD

2020-03-28T21:00:00.000+05:30

Educational websites provides resource for the students. Educational websites equips the student with update knowledge. Educational websites helps to explore novel idea among students. By creating an educational websites, we can enhance the studies and to create an emergent classroom.

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Sunset Painting (Water Color)

2020-03-28T18:48:00.002+05:30

"If you're someone who enjoys capturing life through art, sunsets are a great subject. Paint, particularly acrylic pigments, are perfect for imitating the deep purples, pinks, and oranges seen in the sky. They can be simple swirling gradients or you can add in silhouette elements along the horizon line."

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Photography

2020-03-28T13:40:00.029+05:30

Mobile PhotoGraphy

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Wrist Watch

Water Drop

Types Of Computer

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1 1) Analog Computer:- An analog computer is a computer which is used to process analog data. Analog computers store data in a continuous form of physical quantities and perform calculations with the help of measures. It is quite different from the digital computer, which makes use of symbolic numbers to represent results. Analog computers are excellent for situations which require data to be measured directly without converting into numerals or codes. Analog computers, although available and used in industrial and scientific applications like control systems and aircraft, have been largely replaced by digital computers due to the wide range of complexities involved.

Example:- Temperature, Pressure, Telephone lines, Speedometer etc.

2) Digital Computer:- A digital computer system has four basic functional elements: (1) input-output equipment, (2) main memory, (3) control unit, and (4) arithmetic-logic unit. Any of a number of devices is used to enter data and program instructions into a computer and to gain access to the results of the processing operation. Common input devices include keyboards and optical scanners; output devices include printers and monitors. The information received by a computer from its input unit is stored in the main memory or, if not for immediate use, in an auxiliary storage device. The control unit selects and calls up instructions from the memory in appropriate sequence and relays the proper commands to the appropriate unit. It also synchronizes the varied operating speeds of the input and output devices to that of the arithmetic-logic unit (ALU) so as to ensure the proper movement of data through the entire computer system. The ALU performs the arithmetic and logic algorithms selected to process the incoming data at extremely high speeds—in many cases in nanoseconds (billionths of a second). The main memory, control unit, and ALU together make up the central processing unit (CPU) of most digital computer systems, while the input-output devices and auxiliary storage. Its

Constitute peripheral equipment.

Example:- Laptop, Tablet, Desktop.

3) Hybride Compuer:- A hybrid computer is a type of computer that offers the functionalities of both a digital and an analog computer. It is designed to include a working analog unit that is powerful for calculations, yet has a readily available digital memory. In large industries and businesses, a hybrid computer can be used to incorporate logical operations as well as provide efficient processing of differential equations.

Example:-ICU Hospital Computer, Wrist Watch.

4) Micro Computer:- A microcomputer is a computer with a central processing unit (CPU) as a microprocessor. Designed for individual use, a microcomputer is smaller than a mainframe or a minicomputer. The term microcomputer is not as commonly used as it was during the 1970s-1980s. A microcomputer's CPU includes random access memory (RAM), read-only memory (ROM) memory, input/output (I/O) ports, interconnecting wires and a motherboard. In 1970, Hewlett-Packard (HP) manufactured and released a microcomputer as a calculator with varying levels of programmability, although the Data point 2200 by Computer Terminal Corporation (CTC) is credited as the first microcomputer. Intel’s x86 processor family can also be traced back to CTC’s release.

Example:- Desktop Computer, Laptop.

5) Mini Computer:- A minicomputer is a type of computer that possesses most of the features and capabilities of a large computer but is smaller in physical size. A minicomputer fills the space between the mainframe and microcomputer, and is smaller than the former but larger than the latter. Minicomputers are mainly used as small or mid-range servers operating business and scientific applications. However, the use of the term minicomputer has diminished and has merged with servers.

A minicomputer may also be called a mid-range computer.

Example:- I pod, Mobile etc,

6) Mainframe Computer:- Mainframes are a type of computer that generally are known for their large size, amount of storage, processing power and high level of reliability. They are primarily used by large organizations for mission-critical applications requiring high volumes of data processing. In general, there are a few characteristics of mainframes that are common among all mainframe vendors: Nearly all mainframes have the ability to run (or host) multiple operating systems. Mainframes can add or hot swap system capacity without disruption. Mainframes are designed to handle very high volume input and output (I/O) and emphasize throughput computing. A single mainframe can replace dozens or even hundreds of smaller servers.

Example:- used for such applications as payroll computations, accounting, business transactions, etc.

7) Super Computer:- A supercomputer is a type of computer that has the architecture, resources and components to achieve massive computing power. Today's super-computers consists of tens of thousands of processors that are able to perform billions and trillions of calculations or computations per second. Supercomputers are primarily are designed to be used in enterprises and organizations that require massive computing power. A supercomputer incorporates architectural and operational principles from parallel and grid processing, where a process is simultaneously executed on thousands of processors or is distributed among them. Although supercomputers houses thousands of processors and require substantial floor space, they contain most of the key components of a typical computer, including a processor(s), peripheral devices, connectors, an operating system and applications.

Example:- Use for Weather Report, Online Gaming etc.

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Circuit Diagram

2020-03-27T14:15:00.004+05:30

laser Security alarm

Laser security systems are a high tech technology that used to be a part of home security only available to the wealthy. It is manually switch dependent sensors and a basic alarm unit. Laser security system a person moves in front of the sensor, that person triggers the system's alarm by cutting the laser.

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