how to use computer

1.Getting Started

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   Set up your computer. If you are setting up a new desktop computer, there are a few steps you will need to go through before you can start using it. After finding a place near your desk to put the tower, you will need to connect your monitor, keyboard, and mouse, as well as plug the tower into a power source.

   • These are the only things required to be connected to the computer in order to use it. You can add more peripherals and accessories later.
   • If you are using a new laptop, you will have significantly less to set up. Plug your laptop into a power source to ensure that it is charged, and then power it on to begin.
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   Create a user account. If you are using the computer for the first time, you will likely be asked to create a user account when you turn it on. This account will hold all of your documents, pictures, downloaded files, and any other files that you create.

   • If your computer is in a public setting, you should create a strong password to protect your personal information. This is highly recommended, even if your computer is a home computer.
   • This guide will show you how to create a new user account in Windows 7
   • This guide will show you how to make a new user account in Windows 8
   • This guide will show you how to make a new user account in OS X
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   Get familiar with the desktop. The desktop is the main work area of your computer, and will likely be the most visited area of your computer. Your desktop appears every time you log into your account, and contains icons and shortcuts to your most used programs and files. The desktop will look and function differently depending on which operating system you use.

   • Windows operating systems (except Windows 8) are characterized by the Start menu in the lower-left corner of the desktop. The Start menu allows you to quickly access your installed programs and settings.
   • Windows 8 has replaced the Start menu with the Start screen. It functions much the same way, but is fundamentally different in the way it displays information.
   • OS X allows you to use multiple desktops to keep things organized and under control. See this guide for details on how to take advantage of multiple desktops.
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   Learn mouse and keyboard basics. The mouse and keyboard are your primary means of interacting with your computer. Take some time to get familiar with how they work and how you can interact with your operating system and programs.

   • Learn how to use a mouse to navigate. Your mouse allows for pinpoint navigation and control, and is necessary for a wide variety of activities. Getting familiar with how to use the mouse will go a long way towards making you a more proficient computer user.
   • Practice some keyboard shortcuts to improve your work flow. Keyboard shortcuts are combinations of keyboard keys that perform a function in the program or operating system you are using. For example, in most programs that allow saving files, pressingCtrl+S (⌘ Cmd+S on a Mac) will automatically save your current file.
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   Launch some preinstalled applications. Even if you built your computer yourself, there will be some preinstalled applications and utilities that you can use without having to install anything additional. If you are using Windows, click the Start menu and browse through your available programs. If you are using a Mac, check your Dock and Applications folder.

SODIUMBICARBONATE

STRUCTURE

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DRUG INFO

PHARMACOLOGY

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BIOACTIVITIES

PubChem CID:	516892
Chemical Names:	SODIUM BICARBONATE; Sodium hydrogen carbonate; Baking soda; 144-55-8; Bicarbonate of soda; Carbonic acid monosodium salt   More...
Molecular Formula:	NaHCO3
Drug Information:	Drug Indication  Therapeutic Uses  Clinical Trials  FDA Orange Book  FDA UNII
Safety Summary:	Laboratory Chemical Safety Summary (LCSS)

SODIUM BICARBONATE is a white, crystalline powder that is commonly used as a pH buffering agent, an electrolyte replenisher, systemic alkalizer and in topical cleansing solutions.

Sodium Bicarbonate is the monosodium salt of carbonic acid with alkalinizing and electrolyte replacement properties. Upon dissociation, sodium bicarbonate forms sodium and bicarbonate ions. Ion formation increases plasma bicarbonate and buffers excess hydrogen ion concentration, resulting in raised blood pH.

PHYSICAL DESCRIPTION: Odorless white crystalline powder or lumps. Slightly alkaline (bitter) taste. pH (of freshly prepared 0.1 molar aqueous solution): 8.3 at 77°F. pH (of saturated solution): 8-9. Non-toxic.