What is computer mouse ?

The computer mouse is considered an input device. With a click of a button, the mouse sends information to the computer. The computer mouse is an interesting device that offers an alternative way to interact with the computer beside a keyboard.

A typical mouse has two buttons. At the top of the device you will find a left and right button which allows for “clicks”. There is a scrolling wheel between the two buttons.

How to Hold a Mouse ?

The mouse fits in the palm of your hand. Generally all mice are set up for right-hand dominant use but can be customized and adjusted for left-hand use.

Your index finger will rest over the left mouse button while the rest of your hand will lightly grip the mouse.

You may use your middle and/or your ring finger to use the wheel and/or the right mouse button.

Your hand will cup the mouse and your fingers should be relaxed while holding the mouse.

Your arm may rest on the table. You hand should not hold, squeeze, or clench the mouse but rather guide the mouse around.

Your shoulder and elbow rather than your wrist should be moving the mouse around the mouse pad or table. A mouse pad may be provided as a clean smooth surface to guide your mouse on top.

You should have plenty of room for full movement of the mouse. You may pick up your mouse and place it back down in the middle of your mouse pad at any time to readjust your mouse position. Remember-do not tense your hands or arms. The muscles of your hands, fingers, and arms should be relaxed.

Types of Mice

There are many types of mice. Most of us have a computer mouse that is connected to our computer by a cable with a ball at the bottom of the mouse device. The IntelliMouse has a wheel between the left and right mouse buttons. This is the most popular style of mouse device. There are cordless mice, mice with a trackball on top instead of the bottom, touchpads, and mice operated by use of a foot. Whatever mouse you decide to use become comfortable using it. There is a style of mouse device for everyone.

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The differences between RAM & ROM.

RAM is Random Access Memory.  
ROM is Read Only Memory.

RAM is the memory available for the operating system, programs and processes to use when the computer is running.  
ROM is the memory that comes with your computer that is pre-written to hold the instructions for booting-up the computer.

RAM requires a flow of electricity to retain data (e.g. the computer powered on).
ROM will retain data without the flow of electricity (e.g. when computer is powered off).

RAM is a type of volatile memory. Data in RAM is not permanently written. When you power off your computer the data stored in RAM is deleted. 
ROM is a type of non- volatile memory. Data in ROM is permanently written and is not erased when you power off your computer.

There are different types of RAM, including DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory).
There are different types of ROM, including PROM (programmable read-only memory) that is manufactured as blank memory (e.g. a CD-ROM) and EPROM (erasable programmable read-only memory).

There are many differences between RAM and ROM memory but there are also a couple similarities (and these are very easy to remember).  Both types of memory used by a computer, and they are both required for your computer to operate properly and effision . 

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Why do we need computers? Is it important to us ?

Okay now i will tell ya !

Computers have great importance in the world today. They enable people to save data in a soft form thus reducing the bulkiness associated with filing systems. They also enable one to multitask, that is, carrying out a number of operations simultaneously. This thus saves ion time. The computer has become a media of communication. Through internet, people from different worlds are able to interact with ease via the computer. These are a few of the many roles a computer plays in our ever day life.

What is computer ?

Introduction to computers

Are you new to computers? Do you wonder what they do and why you would want to use one? Welcome—you're in the right place. This article gives an overview of computers: what they are, the different types, and what you can do with them.

What are computers?

Computers are machines that perform tasks or calculations according to a set of instructions, or programs. The first fully electronic computers, introduced in the 1940s, were huge machines that required teams of people to operate. Compared to those early machines, today's computers are amazing. Not only are they thousands of times faster, they can fit on your desk, in your lap, or even in your pocket.

Computers work through an interaction of hardware and software. Hardware refers to the parts of a computer that you can see and touch, including the case and everything inside it. The most important piece of hardware is a tiny rectangular chip inside your computer called the central processing unit (CPU), or microprocessor. It's the "brain" of your computer—the part that translates instructions and performs calculations. Hardware items such as your monitor, keyboard, mouse, printer, and other items are often called hardware devices, or devices.

Software refers to the instructions, or programs, that tell the hardware what to do. A word processing program that you can use to write letters on your computer is a type of software. The operating system (OS) is software that manages your computer and the devices connected to it. Two well-known operating systems are Windows and Macintosh operating system. Your computer uses the Windows operating system.

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INTRODUCTION

 Hello there guys , now lets begin our intro with basmalah. 

    Name Nur Dinnie Shazlyn Bt Mohd Noor Salizan was been given by my dad when his first daughter was born. I was born on March 2nd 1993 at Subang Jaya Medical Centre (SJMC). I have 6 siblings (including me) which is I am the oldest one. A beautiful family live in Petaling Jaya, Selangor somewhere known as Kota Damansara. People can easily called me with a short name, dinnie :) There's a few things that some people might do not know what type of person I am . An easy-going person, love to laugh, food lover, strong hearted person *haha and  takde sombong2 ehh. Okay la , anything to ask just text me HAHA . Sayonara :))