ashiq ppt
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Submitted To:
Sajeeb Saha
Lecturer
Dept. of Agribusiness & MarketingFaculty of Agribusiness Management
Submitted By:
Md. Ashiqur Rahman
Reg. No.: 11-04378
Level -1 semesterII
Faculty of Agribusiness Management
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What is a Computer----- --------- 4
Computers Simplified------------ 5-6 Different Types of Computers 7-11
Other Types of Computers------ 12-13
Uses of Computers----------------- 14-21
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A computer is an electronic
device that manipulates
information, or "data." It has the
ability to store, retrieve, and
process data. You can use acomputer to type documents,
send email, and browse the
internet. You can also use it to
handle spreadsheets, accounting,database management,
presentations, games, and more.
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For beginning computer users, the computer aisles at an electronics
store can be quite a mystery, not to mention overwhelming. However,
computers really aren't that mysterious. All types of computers
consist of two basic parts:
Hardware is any part of your computer that has a physicalstructure, such as the computer monitor or keyboard.
A motherboard (hardware)
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Software is any set of instructions that tells the hardware
what to do. It is what guides the hardware and tells it how
to accomplish each task. Some examples of software are
web browsers, games, and word processors such as
Microsoft Word.
Microsoft Word (software)
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When most people hear the word "computer" they think of a personalcomputer such as a desktop or laptop computer. However,computers come in many shapes and sizes, and they performmany different functions in our daily lives. When you withdrawcash from an ATM, scan groceries at the store, or use a calculator,you're using a type of computer.
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Many people use desktop computers at work, home,
school, or the library. They can be small, medium, or largein style, and usually sit on a desk. Once you add a
monitor, mouse, and a keyboard, you have what is
typically known as a desktop computer.
A desktop computer
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The second type of computer that you may be familiar with is a
laptop computer, or laptops as they are often referred to. Laptopsare battery or AC-powered personal computers that are moreportable than desktop computers, allowing you to use themalmost anywhere. A laptop computer is sometimes called anotebook computer because of its size.
A laptop computer
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A server is a computer that "serves up" information to other computers on a
network. Many businesses have file servers that employees can use to store
and share files. A server can look like a regular desktop computer, or it can bemuch larger.
Servers also play an important role in making the internet work: they are
where web pages are stored. When you use your browser to click a link, a
web server delivers the page you requested.
A server room
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Today, there are many different types of computers that you can buy, and
some of them are even more portable than laptops. Here are a few common
examples:
The iPad, a type of tablet computer
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Tablet Computers: These use a touch-sensitive screen fortyping and navigation. Since they don't require a keyboardor mouse, tablet computers are even more portable thanlaptops. The iPad is an example of a tablet computer.
Mobile Phones: Many mobile phones can do a lot of things
a computer can do, such as browsing the internet or playinggames. These phones are often called smartphones. Game Consoles: A game console is a specialized kind of
computer that is used for playing video games. Althoughthey are not as fully-featured as a desktop computer, manynewer consoles, such as the Nintendo Wii, allow you to do
non-gaming tasks like browsing the internet. TVs: Many TVs now include applications (or apps) that let
you access various types of online content. For example, youcan view your Facebook news feed or watch streamingmovies on Netflix.
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Personal computers come in two main "styles": PC and Mac. Both styles arefully functional, but they do have a different look and feel, and many
people prefer one or the other.
A PC A Mac
PC: This type of computer began with the original IBM PC that was introduced in
1981. Other companies began to create similar computers, which were called IBM PCCompatible (often shortened to PC). Today, this is the most common type of personalcomputer, and it typically includes the Microsoft Windows operating system.
Mac: The Macintosh computer was introduced in 1984, and it was the first widelysold personal computer with a Graphical User Interface, or GUI (pronouncedgooey). All Macs are made by one company, Apple Inc., and they almost alwaysuse the Mac OS X operating system.
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Medicine and Health Care Education Home Science
Archaeology Engineering and Architectures Manufacturing Legal Practice Law Enforcement
Government The Military Music Theater and Film
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Medicine and Health Care:In medicine today, computers are used foe every thing from diagnosing illnesses to
monitoring patients during surgery and controlling permanent prostheses. Several
interesting medical applications use small, special purpose computers that operate
within the human body to help the body function better. Pacemakers, cochlear implant(special kind of hearing aid) computerized axial tomography (CAP) scans are examples.
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Education:In the last ten years, small computers have sparked a revolution in education. Everyone
from preschool children to senior citizens can now put computers to work for their own
intellectual benefits. In the classroom, students can develop sense projects and prepare
reports using computer technology. We can find computers in classrooms, museums,
libraries, and they are rapidly becoming as essential to the learning process as are
books, paper, and pens.
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Home:
Many people already have, often justifying it as an educational tool for theirchildren. Personal computers are used at home to keep records, writeletters, prepare budgets, draw pictures, prepare newsletters, connect withothers, and for playing games. The more adventurous use of computers tocontrol heating and air conditioning, answer telephone calls, safeguardthe house during vacations and so on.
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Science:Scientists use computers to develop theories, to collect and test data, and to
exchange information electronically with colleagues around the world.
Researchers can access data basis in distant locations all without going any
further than the closest computer via e-mail, internet. Scientists can use
powerful computer to generate detailed studies of how earthquakes effect
buildings or pollution effects weather patterns.
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Archaeology:
Archaeologists can use computers to peer through the wrappings of amummy (Egyptian mummies) at one time scientists use x-rays to\
examine mummies, but the results were just that x-rays, without
surface detail. With the innovation of CAT scans, archaeologists study
mummies a much finer detail without damaging them
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Engineering and Architectures:In place of drafting tables, an engineer or architect designing a product can befar more productive with a computer than with a pencil and a paper. When
you design an object with a computer, you create an electronic model by
describing all three dimensions of the object. If you want to see the object
from a different prospective, you can tell the computer display another view.
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Manufacturing:In addition to product design, computers are
playing an ever increasing rolein manufacturing. In some factories
computers control virtually every thing.
For example, take a power plant that
generate steam. In this kind of factory, a
computer monitors pressures and
temperatures at hundreds of critical points
through the plant. If the pressure of
temperature in the pipe or tank exceeds
the specified level, the computer can
regulate the process directly by turning
valves and adjusting burners.
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Thank You
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