hardware prsentation2

PowerPoint Presentation: 

Computer application Presentation on:- COMPUTER HARDWARE Maryam Tahira Nazia Yaseen Syed Muhammad Imran Fahad Usama tariq Ethsham Kiayani Prepared by:-

PowerPoint Presentation: 

In information society the focus of commerce is on the generation and distribution of information. A technological revolution is changing our way of life; the way we live, work and play. Computer is transforming the way we communicate, do business and learn and explosion of computing advances is speeding these changes

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computer

Definition of computer: 

Definition of computer The word computer comes from the word “compute”, which means to calculate. So a computer is normally considered to be a calculating device. A device that can perform arithmetical and logical operations at a fast speed. Or A computer is an electronic device that can accept data, store it arithmetically and logically, process that information and give result from that processing

Classification of Digital Computers: 

Classification of Digital Computers Computers are classified according to size, speed and memory capacity. Computers are of different types. Super Computers Mainframe Miniframe Micro/PC/Desktop Laptop

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Hardware

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The hardware are the parts of computer itself including the Central Processing Unit (CPU) and related microchips and micro-circuitry , keyboards , monitors , case and drives (floppy, hard, CD, DVD, optical, tape, etc...). Other extra parts called peripheral components or devices include mouse , printers , modems , scanners , digital cameras and cards ( sound , colour , video ) etc... Together they are often referred to as a personal computer or PC .

The Central Processing Unit: The Microprocessor: 

The Central Processing Unit: The Microprocessor Central processing unit ( CPU ) – A microprocessor that interprets and carries out instructions given by software. It controls the computer’s components CPU CPU socket

Input & Output Devices: 

Input & Output Devices

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Keyboard

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The keyboard is used to type information into the computer or input information. There are many different keyboard layouts and sizes with the most common for Latin based languages being the QWERTY layout (named for the first 6 keys). The standard keyboard has 101 keys. Notebooks have embedded keys accessible by special keys or by pressing key combinations (CTRL or Command and P for example). Ergonomically designed keyboards are designed to make typing easier. Some of the keys have a special use. There are referred to as command keys . The 3 most common are the Control or CTRL, Alternate or Alt and the Shift keys though there can be more (the Windows key for example or the Command key). Each key on a standard keyboard has one or two characters . Press the key to get the lower character and hold Shift to get the upper.