Lesson- 7 

INTRODUCTION TO HANDHELD COMPUTERS

 (LAPTOP, NETBOOK, TABLET)

What is a Laptop Computer?

A laptop is a battery or AC-powered personal computer that can be easily carried and used in a variety of locations. Many laptops are designed to have all of the functionality of a desktop computer, which means they can generally run the same software and open the same types of files. However, some laptops, such as netbooks, sacrifice some functionality in order to be even more portable.

How is a Laptop Different from a Desktop?

Since laptops are designed for portability, there are some important differences from desktop computers. A laptop has an all-in-one design, with a built-in monitor, keyboard, touchpad (which replaces the mouse), and speakers. That means it is fully functional even when there are no peripherals attached to it. A laptop is quicker to set up, and there are fewer cables to get in the way.

You also have the option of connecting a regular mouse, a larger monitor, and other peripherals. This basically turns your laptop into a desktop computer, with one main difference: You can easily disconnect the peripherals and take the laptop with you wherever you go.

Here are the main differences that you can expect with a laptop:

A touchpad on a laptop

Touchpad: A touchpad (also called a trackpad) is a touch-sensitive pad that lets you control the pointer by making a "drawing" motion with your finger. Many touchpads now include multi-touch gestures, which allow you to perform specific tasks by making gestures with more than one finger.

Battery: Every laptop has a battery which allows you to use the laptop when it's not plugged in. Whenever you plug the laptop in, the battery recharges. Another benefit of having a battery is that it can provide backup power to the laptop if the power goes out.

Lesson- 6 

INTERNAL PARTS OF A DESKTOP 

COMPUTER

Inside a Desktop Computer

Have you ever looked inside a computer case before, or seen pictures of the inside of one? The small parts may look complicated, but the inside of a computer case really isn't all that mysterious. This lesson will help you master some of the basic terminology and understand a little about what goes on inside the four walls of the computer casing.

Let's explore the inside of a computer tower.

CPU/Processor

The Central Processing Unit (CPU), also called a processor, is located inside the computer case on the motherboard. It is sometimes called the brain of the computer, and its job is to carry out commands. Whenever you press a key, click the mouse, or start an application, you're sending instructions to the CPU.

Lesson- 5 

BUTTONS, SOCKETS AND SLOTS ON A 

DESKTOP COMPUTER

Introduction to Computer Sockets and Slots

Take a look at the front and back of your computer case and count the number of buttons, sockets, and slots you see. Now, look at your monitor and count any that appear there. Each computer is different, so the buttons, slots, and sockets will vary from computer to computer. However, there are certain features you can expect to find on most desktop computers. Being familiar with the names of each and how they are commonly used will help you later on when you connect that new printer, mouse, digital camera, or other device.

Front of Computer Case

front of computer case

Optical Disc Drive: Often called a CD-ROM or DVD-ROM drive, these let your computer read CDs and DVDs. Most optical disc drives can also write (or "burn") data to CD-R and DVD-R discs. More recent drives can read Blu-ray Discs and write to BD-R (Blu-ray Disc recordable) discs, and these drives are often called BD-ROM, BD-RE, or Blu-ray drives.

Lesson- 4 

BASIC PARTS OF A COMPUTER

Parts of a Computer

The basic parts of a desktop computer are the computer case, monitor, keyboard, mouse, and power cord. Each part plays an important role whenever you use a computer.

Computer Case

The computer case is the metal and plastic box that contains the main components of the computer. It houses the motherboard, central processing unit (CPU), the power supply, and more.

Computer cases come in different shapes and sizes. A desktop case lies flat on a desk, and the monitor usually sits on top of it. A tower case is tall and sits next to the monitor or on the floor. The front of the case usually has an on/off switch and one or more optical drives.

Most of the personal computers you can purchase today include tower cases, rather than desktop cases; however, some computers are being made with all of the internal components built into the monitor, which completely eliminates the tower.

Lesson- 3

 

APPLICATIONS

What is an application?

You may have heard people talking about using an application or an app. But what exactly does that mean? An application (or app) is a type of software that allows you to perform specific tasks. Applications for desktop or laptop computers are sometimes called desktop applications, and those for mobile devices are called mobile apps. When you open an application, it runs inside the operating system until you close it. Much of the time, you will have more than one application open at the same time, and this is known as multitasking.

App is a very common term for an application, especially for simple applications that can be downloaded cheaply or even for free. Many apps are also available for mobile devices and even some TVs.

Types of Desktop Applications

There are countless desktop applications out there, and they fall into many different categories. Some are more full-featured (like Microsoft Word), while others may only do one or two things (like gadgets). Below are just a few types of applications that you might use:

• Word Processors: A word processor allows you to write a letter, design a flyer, and create many other kinds of documents. The most well-known word processor is Microsoft Word.
• Personal Finance: Personal finance software, such as Quicken, allows you to keep track of your income and expenses, create a budget, and more. Most personal finance programs can automatically download information from your bank, so you don't have to manually type in all of your transactions.

Lesson- 2 

OPERATING SYSTEM

What is an Operating System?

An operating system is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's "language." Without an operating system, a computer is useless.

The Operating System's Job

You've probably heard the phrase boot your computer, but do you know what that means? Booting is the process that occurs when you press the power button to turn your computer on. During this process (which may take a minute or two), the computer does several things:

• It runs tests to make sure everything is working correctly.
• It checks for new hardware.
• It then starts up the operating system.

Once the operating system has started up, it manages all of the software and hardware on the computer. Most of the time, there are many different programs running at the same time, and they all need to access your computer's Central Processing Unit (CPU), memory, and storage. The operating system coordinates all of this to make sure that each program gets what it needs. Without the operating system, the software wouldn't even be able to talk to the hardware, and the computer would be useless.

Types of Operating Systems

Operating systems usually come preloaded on any computer that you buy. Most people use the operating system that comes with their computer, but it is possible to upgrade or even change operating systems.

The three most common operating systems for personal computers are Microsoft Windows, Apple Mac OS X, and Linux.

Modern operating systems use a Graphical User Interface, or GUI (pronounced "gooey"). A GUI lets you use your mouse to click on icons, buttons, and menus, and everything is clearly displayed on the screen using a combination of graphics and text.

Lesson- 1 

TO KNOW COMPUTERS

What is a Computer?

A computer is an electronic device that manipulates information, or "data." It has the ability to store, retrieve, and process data. You can use a computer to type documents, send email, and browse the internet. You can also use it to handle spread sheets, accounting, database management, presentations, games, and more.

 Photography  my small typic 

is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.

Photographer Cover Letter and Resume Examples

As a professional photographer, creativity is your calling card – a talent you should ideally be able to express not only through images, but also in the language you use to describe your photography skills when applying for jobs. Your cover letter and resume provide an excellent chance to make a positive first impression upon a potential employer by impressing them with your creative artistic background and technical skills.\\\\\

Monu Pansotra Height, Weight, Age, Friends , Family, Biography, Wiki

Monu Pansotra Height, Weight, Age, Wife, Family, Biography, Wiki. Monu Pansotra is an Indian Soldier, TV Presenter and Social Media Celebrity. He was born on 7 December 1991 in Gho, Punjab, India. He is highest-paid and one of the popular actor in India . Monu Pansotra Net Worth $5 Million Dollars. He is very talented, who is best known for. Monu pansotra was made his

Monu Pansotra was born on 7 December 1991 into a HINDU family in the village of GHO PATHANKOT district, Punjab, India. ^[7] He spent his early childhood in GHO and then moved to PATHANKOT, Punjab from where he completed his formal education, including his high school diploma from  sarvhitkari  vidiya mandir SchoOL; GHO Public School. While still in school, he began