Monday, 8 July 2013

COMPUTER HARDWARE INFORMATION

It is important that you understand what is your computer made up of and that includes the hardware. The computer is one wonderful technology and in today’s’ world hardly any of us can do without it. At the same time being more aware of what is inside it will enable us to piece the things together and understand its working far better. This kind of knowledge of the hardware and the adequate amounts of information about it will help you in case you need to do any repairs on the computer or call in a technician to do so.
The first thing that you need to know is the parts and components that go into the making up of your computer. A computer technician will be able to tell you all of these things and inform you about each of these parts as they troubleshoot your computer.
You can also go ahead and buy the computer hardware differently and then go ahead and assemble the whole thing. This will ensure that you are able to get the benefits of the best of hardware and yet not end up paying the price for a brand. When you choose a store built computer no doubt it is easy and less cumbersome but you also end up paying a hefty price for it. They give you a great deal of convenience as the models are already ready and you have all the instructions to go about operating it.
Also, once you have hardware fitted into your computer, you can also go ahead and update to the latest versions of the latest hardware. The more you know of the kind of hardware that has gone into the making of your computer, the more will you be able to understand your computer and its working. If you are assembling your own computer then you can take the hardware parts from different manufacturers. This will give you a wider choice and also cost you less.
The purpose for which you are going to use the computer will decide on the kind of hardware that you need to buy. If you do only basic computer tasks on your computer that includes office work, sending emails and surfing the internet, then what you need is a basic form of hardware.If you are a gaming aficionado then you will need a computer that has a higher resolution to it. At the same time if you are into animation and graphic design then your computer hardware will need to keep in tandem with it and requires being high intensity.
The basic things that you find inside any computer are the RAM, which is the Random Access Memory, the Hard Disk Drive, the Central Processing Unit, and the Motherboard. If you are looking for a computer that fits the bill perfectly and meets all of your requirements then you should certainly go ahead and build your own one. When you build your own one it is certainly going to have the right kind of hardware inside it that is tailor made for your requirements.

OTHER TYPES OF COMPUTERS

Today, there lots of everyday devices that are basically specialized computers, even though we don't always think of them as computers. Here are a few common examples:
The iPad, a type of tablet computerThe iPad, a type of tablet computer
  • Tablet Computers: These use a touch-sensitive screen for typing and navigation. Since they don't require a keyboard or mouse, tablet computers are even more portable than laptops. 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 playing games. These phones are often called smartphones.
  • Game Consoles: game console is a specialized kind of computer that is used for playing video games. Although they are not as fully-featured as a desktop computer, many newer consoles, such as theNintendo 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, you can view your Facebook news feed or watch streaming movies on Netflix.

DIFFERENT TYPES OF COMPUTERS

Desktop Computers

A desktop computerA desktop computer
Many people use desktop computers at work, home, school, or the library. They can be small, medium, or large in 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.

Most desktop computers are easy to upgrade and expand, or add new parts. Another benefit of desktop computers is the cost. If you compare a desktop and a laptop with the same features, you will most likely find that the desktop computer is priced lower.
Some desktop computers have a built-in monitor to save space. These are often called all-in-one desktop computers.

Laptop Computers

A laptop computerA laptop computer
The second type of computer that you may be familiar with is a laptop computer, or laptops as they are often referred to. Laptops are battery or AC-powered personal computers that are more portable than desktop computers, allowing you to use them almost anywhere.
Since a laptop is smaller than a desktop, it's more difficult to access the internal components. That means you may not be able to upgrade them as much as a desktop. However, it's usually possible to add more RAM or a bigger hard drive.
 A laptop computer is sometimes called a notebook computer because of its size.

Servers

A server roomA server room
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 be much 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.

PARTS OF A COMPUTER

System unit

The system unit is the core of a computer system. Usually it's a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU), or microprocessor, which acts as the "brain" of your computer. Another component is random access memory (RAM), which temporarily stores information that the CPU uses while the computer is on. The information stored in RAM is erased when the computer is turned off.
Almost every other part of your computer connects to the system unit using cables. The cables plug into specific ports(openings), typically on the back of the system unit. Hardware that is not part of the system unit is sometimes called aperipheral device or device.
Picture of a system unit

Storage

Your computer has one or more disk drives—devices that store information on a metal or plastic disk. The disk preserves the information even when your computer is turned off.

Hard disk drive

Your computer's hard disk drive stores information on a hard disk, a rigid platter or stack of platters with a magnetic surface. Because hard disks can hold massive amounts of information, they usually serve as your computer's primary means of storage, holding almost all of your programs and files. The hard disk drive is normally located inside the system unit.
Picture of a hard disk drive
Hard disk drive

CD and DVD drives

Nearly all computers today come equipped with a CD or DVD drive, usually located on the front of the system unit. CD drives use lasers to read (retrieve) data from a CD, and many CD drives can also write (record) data onto CDs. If you have a recordable disk drive, you can store copies of your files on blank CDs. You can also use a CD drive to play music CDs on your computer.
Picture of a CD
CD
DVD drives can do everything that CD drives can, plus read DVDs. If you have a DVD drive, you can watch movies on your computer. Many DVD drives can record data onto blank DVDs.

Floppy disk drive

Floppy disk drives store information on floppy disks, also called floppies or diskettes. Compared to CDs and DVDs, floppy disks can store only a small amount of data. They also retrieve information more slowly and are more prone to damage. For these reasons, floppy disk drives are less popular than they used to be, although some computers still include them.
Picture of a floppy disk
Floppy disk
Why are floppy disks "floppy"? Even though the outside is made of hard plastic, that's just the sleeve. The disk inside is made of a thin, flexible vinyl material.

Mouse

A mouse is a small device used to point to and select items on your computer screen. Although mice come in many shapes, the typical mouse does look a bit like an actual mouse. It's small, oblong, and connected to the system unit by a long wire that resembles a tail. Some newer mice are wireless.
Picture of a computer mouse
Mouse
A mouse usually has two buttons: a primary button (usually the left button) and a secondary button. Many mice also have a wheel between the two buttons, which allows you to scroll smoothly through screens of information.
Picture of mouse pointers
When you move the mouse with your hand, a pointer on your screen moves in the same direction. (The pointer's appearance might change depending on where it's positioned on your screen.) When you want to select an item, you point to the item and then click (press and release) the primary button. Pointing and clicking with your mouse is the main way to interact with your computer. For more information, see Using your mouse.

Keyboard

A keyboard is used mainly for typing text into your computer. Like the keyboard on a typewriter, it has keys for letters and numbers, but it also has special keys:
  • The function keys, found on the top row, perform different functions depending on where they are used.
  • The numeric keypad, located on the right side of most keyboards, allows you to enter numbers quickly.
  • The navigation keys, such as the arrow keys, allow you to move your position within a document or webpage.
Picture of a keyboard
Keyboard

Monitor

monitor displays information in visual form, using text and graphics. The portion of the monitor that displays the information is called the screen. Like a television screen, a computer screen can show still or moving pictures.
There are two basic types of monitors: CRT (cathode ray tube) monitors and LCD (liquid crystal display) monitors. Both types produce sharp images, but LCD monitors have the advantage of being much thinner and lighter. CRT monitors, however, are generally more affordable.
Picture of an LCD monitor and a CRT monitor
LCD monitor (left); CRT monitor (right)

Printer

A printer transfers data from a computer onto paper. You don't need a printer to use your computer, but having one allows you to print e‑mail, cards, invitations, announcements, and other materials. Many people also like being able to print their own photos at home.
The two main types of printers are inkjet printers and laser printers. Inkjet printers are the most popular printers for the home. They can print in black and white or in full color and can produce high-quality photographs when used with special paper. Laser printers are faster and generally better able to handle heavy use.
Picture of an inkjet printer and a laser printer
Inkjet printer (left); laser printer (right)

Speakers

Speakers are used to play sound. They may be built into the system unit or connected with cables. Speakers allow you to listen to music and hear sound effects from your computer.
Picture of computer speakers
Computer speakers

Modem

To connect your computer to the Internet, you need a modem. A modem is a device that sends and receives computer information over a telephone line or high-speed cable. Modems are sometimes built into the system unit, but higher-speed modems are usually separate components.
Picture of a cable modem
Cable modem

COMPUTER


What is computer?
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.

Sunday, 7 July 2013

About Me :D

Assalamualaikum...

Serba sedikit tentang insan yang bernama Anis.

Nama saya Anis Salwani Binti Mohd Zahar. Can call me Anis. Lahir pada 26 Julai 1993 di HUSM Kubang Kerian. Saya berasal dari Kelantan dan dibesarkan disana tapi tahun 2012 saya telah berpindah ke Jempol Negeri Sembilan. Family saya tak besar sangat.,saya anak ke-3 daripada 3 orang adik-beradik.,ada 2 orang abang.


  • love my family so muchhh
  • love my friends a lot
  • love my lecturer especially Madam Azyan Yusra :)
  • love to smile
  • love to eat especially my mom's cooking
  • love chocolate
  • love to be nice to everyone
  • love everything
  • and love u'ollssssss :D