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Microcomputer, an electronic device with a microprocessor as its central processing unit (CPU). Microcomputer was formerly a commonly used term for personal computers, particularly any of a class of small digital computers whose CPU is contained on a single integrated semiconductor chip.

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The midrange computer was a class of computer system that is between mainframe computer. The main similarity of midrange computers and mainframes - they are both oriented for decimal-precision computing and high volume input and output.The low-end mainframe can be more affordable and less powerful that a hi-end midrange system, but midrange system still was a "replacement solution" with another service process, different OS and internal architecture

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A notebook computer is a battery- or AC-powered personal computer generally smaller than a briefcase that can easily be transported and conveniently used in temporary spaces such as on airplanes, in libraries, temporary offices, and at meetings.

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Mainframe Computer uses the primary memory such as (RAM) and multiple processors.It serves as a central processing unit for all workstations and terminal points associated with it.A mainframe computer was designed to be users at one time.The name a mainframe means a frame to hold multiple processors and main memory.

Some examples are:
Banking, Government, Education system mainframe computer

Functions are:
*Government data processing
*Banking
*Insurance

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any of a class of extremely powerful computers. The term is commonly applied to the fastest high-performance systems available at any given time. Such computers have been used primarily for scientific and engineering work requiring exceedingly high-speed computations. Common applications for supercomputers include testing mathematical models for complex physical phenomena or designs, such as climate and weather, evolution of the cosmos, nuclear weapons and reactors, new chemical compounds (especially for pharmaceutical purposes), and cryptology. As the cost of supercomputing declined in the 1990s, more businesses began to use supercomputers for market research and other business-related models.

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A desktop computer is a personal computer designed for regular use at a single location on or near a desk due to its size and power requirements. The most common configuration has a case that houses the power supply, motherboard (a printed circuit board with a microprocessor as the central processing unit, memory, bus, certain peripherals and other electronic components), disk storage (usually one or more hard disk drives, solid state drives, optical disc drives, and in early models a floppy disk drive); a keyboard and mouse for input; and a computer monitor, speakers, and, often, a printer for output. The case may be oriented horizontally or vertically and placed either underneath, beside, or on top of a desk.

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A mainframe computer, informally called a mainframe or big iron,[1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.

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The function of a computer server is to store, retrieve and send files and data to other computers on its network. A server can be any type of device that shares and saves information. Servers can both store and process information within their own system or request it from another. Servers began as small devices that simply transferred data to a more functional computer then grew in size and ability to perform more complex functions. Servers can provide various functionalities, often called "services", such as sharing data or resources among multiple clients, or performing computating  for a client. A single server can serve multiple clients, and a single client can use multiple servers.

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Laptops are portable computers that integrate the display, keyboard, a pointing device or trackball, processor, memory and hard drive all in a battery-operated package slightly larger than an average hardcover book.

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Microcomputer is known as personal computer like as small computer. Microcomputers are designed with microprocessor as well as it consists single chip that is CPU (Central Processing Unit), data memory (RAM, ROM), and I/O buses; these are connected on the motherboard.

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Microcomputer is an electronic device with a microprocessor as its central processing unit (CPU). Microcomputer was formerly a commonly used term for personal computer, particularly any of a class of small digital computers whose CPU is contained on a single integrated semiconductor chips. Thus, a microcomputer uses a single microprocessor for its CPU, which performs all logic and arithmetic operations.

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A tablet is a flat mobile computer. Rather than having a keyboard and mouse, it uses touch-screen functionality for navigation. Tablets tend to be more versatile due to the wide range of third-party applications they can leverage.

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Its a general purpose computer that is designed for individual use. It has a microprocesser as a central processing unit, memory, storage area, input unit and output unit

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A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.

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It is a sort of personal computer manufactured by Apple company.

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A tablet is a compact device that in many ways functions as a mobile computer/laptop. Today, tablets are growing in popularity because of their ease of use, portability, and features. Tablets can be used to browse the Internet, check email, download and read books, play games, watch videos, organize content, and much more.  Most tablets are touch operated and are between the size of a smartphone and a laptop. Generally, the device will come with a built-in keyboard that displays on screen and a “tilt” feature that changes the orientation of the display depending on how the device is being held.

It wasn’t long ago that office spaces were introducing computers into the workforce for the first time in human history. And now, just a few years since the emergence of computers, we are seeing a new form of technology come into businesses. More business owners are discovering how much value tablets have to offer their overall operations. Many professionals find that several tasks become more seamless when they are performed on a tablet. From taking a payment from a client to creating big work presentations, the tablet makes many job responsibilities easier.Tablets allow for smooth and convenient traveling whenever you have to go on a business trip. Rather than trying to carry a big, bulky laptop on a plane and attempt to get work done with no elbow room, you can just whip out the tablet and take care of business on there. Moreover, Even high quality tablets, which will run more than something generic, don’t have a hefty price tag. Whether you invest in one or two dozen tablets for your business, it will quickly prove to have a high return on investment. Tablets are exponentially cheaper than laptops and many other tech devices.Finally,Tablets come with great applications that allow for optimized social networking. You are able to connect with business contacts and clients through social media sites, email, and cloud based applications. Tablets are also useful for virtual meetings and you can connect with people with video conference calls through your tablet. And if you ever need to check something in the news, there are plenty of applications that allow you to instantly view the latest news updates.

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-MiniComputers are a class of smaller computer that developed in the mind 1960's.
-Less processing speed than mainframe computers.
-They can handle large database and accounting afficiently.
-An early an highly successful minicomputers was Digital Equipment Corporation's (DEC) PPD-8 which was launched in 1964 and cost from US$ 16,000 upwards.

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A notebook is an extremely lightweight personal computer. Notebook computers are small enough to fit easily in a briefcase. Notebook computers use a variety of techniques, known as flat-panel technologies, to produce a lightweight and non-bulky display.Typically more than comparable desktop computers

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A smartphone is obviously the most portable, but a tablet really gives you the freedom to enjoy a larger screen, and even get on with your work or home school. A laptop has more storage of course, but it’s not as portable as a tablet.

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A supercomputer is a computer with a high level of performance as compared to a general-purpose computer. The performance of a supercomputer is commonly measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). Since 2017, there are supercomputers which can perform over 10¹⁷ FLOPS (a hundred quadrillion FLOPS, 100 petaFLOPS or 100 PFLOPS).[3] ]

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Typewriters have typewriter keys, with keys for letters on the typeface. The methods of how typewriters mark paper are now as diverse as the types of printers, but until the end of the 20th century, it was with metal impacting (or, later, metallic plastic-type elements on inked strips that caused ink to stick to the paper. Carbon paper is sometimes. inserted between several layers of paper, so that a copy of the letters is printed on each layer of paper.

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A workstation is like a personal computer, but is has a more powerful microprocessor and in general, a higher quality monitor. Personal computer is a general purpose computer whose size, capabilities and original sale price make it useful for individuals.

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Its a general purpose computer that is designed for individual use. It has a
Microprocessor as a central processing unit, memory, storage area, input unit and output unit.

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A tablet, also called a smart tablet, is a flat mobile computer. Rather than having a keyboard and mouse, it uses touch-screen functionality for navigation. Tablets tend to be more versatile due to the wide range of third-party applications they can leverage.

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Also called personal computers (PCs), desktop computers are universally used for casual and commercial purposes. It’s designed to be static — to remain in a fixed place, like a desk.

Desktop computers tend to be big, but not as large as they originally were. Their cases have gotten smaller as motherboards and their components have decreased in size. Despite this miniaturization, they tend to be the most powerful of the microcomputers

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Embedded computers are computers that are a part of a machine or device. Embedded computers generally execute a program that is stored in non-volatile memory and is only intended to operate a specific machine or device. Embedded computers are very common. The majority are microcontrollers. Embedded computers are typically required to operate continuously without being reset or rebooted, and once employed in their task the software usually cannot be modified. An automobile may contain a number of embedded computers; however, a washing machine or DVD player would contain only one microcontroller. Embedded computers are chosen to meet the requirements of the specific application, and most are slower and cheaper than CPUs found in a personal computer.

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A minicomputer or colloquially mini, is a class of smaller general purpose computer that developed in and middle size computer from IBM and its direct competitors. Mini computers demand from private users and companies regularly increases .

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A highly mobile and compact computer, also called a PDA (personal digital assistant), originally built to function as a personal scheduling assistant. Today, handheld computers frequently provide a convenient connection to the Internet using wireless technology.

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Midrange computers was a class of computer systems which fall in between mainframe computers and microcomputers

Approval

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It is high capacity and costly computer. It is largely used by big organizations where many people can use it simultaneously.

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A handheld computer is a computer that can conveniently be stored in a pocket (of sufficient size) and used while you're holding it. Today's handheld computers, which are also called personal digital assistants (PDAs), can be divided into those that accept handwriting as input and those with small keyboards.

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A Supercomputer is the very fastest and powerful, and expensive type of computer for processing data. Supercomputers’ size and storage capacity are also huge (can occupy huge premises) designed to process vast amounts of data in a short time with high productivity.

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increase work productivity