Wednesday 29 December 2010

Comparison and Contrast Between A Computer and A Laptop


            Nowadays, development of technology is raising fast. In the 20th century, people has been familiar with computers. A computer is a machine that performs tasks, such as calculations or electronic communication, under the control of a set of instructions called a program. Recently, there is a portable computer which is called a laptop. Besides the difference between a computer and a laptop based on their shape, actually they are much similar in terms of the components and programs.
            First, let us think about the physical appearance of the two machines. A computer has a monitor in one square part likes TV, a keyboard in one board, a mouse, and also speaker. All of the parts stand on its own shape. On the other hand, a laptop has all of the parts too , but in two layers. One layer consists of the keyboard, speaker and a small part surface which has the sense of touch as the mouse in a computer. The other layer works as the monitor. Shortly, from this side, computers and laptops have different shape, in which a computer consists of many independet parts and a laptop has a simpler shape consisting of two layers.
Now, let us go further to the components of both machines. Both of them have hardware and software. Computer hardware consists of the components that can be physically handled, which function is typically divided into three main categories: input, output, and storage. Most of the components are in the central processing unit (CPU). CPU of computer usually has a square shape and stands alone but still it is connected to another hardware. A laptop has its CPU in one of the layers. Next, we are talking about the software. A computer has an operating system (OS) which is a software to make the computer works. There are some well-known OSs such as Windows, Mac OSX, Linux, etc. Software is a processor that works as a brain in computer. There are two best processors in the century which are Intel and AMD. Intel has some types such as Atom, Core 2 Duo, Dual Core, Celeron, etc. AMD also has several types like Turion, Venom, Aplon, etc. The processor can influence the work of the computer. Furthermore, there is another important software which is called memory. The physical memory of a computer is random access memory (RAM), which can be read and changed by the user or computer, or read-only memory (ROM), which can be read by the computer but not modified in any way. A computer has tiny computer chips that hold millions of bytes of information. That is RAM. As an additional memory, a computer also has an external memory such as floppy disks (hold about 2 megabytes of information), hard drives  (hold gigabytes of information), compact discs (CDs) (hold about 680 megabytes of information) and digital video discs (DVDs) (hold about 8.5 gigabytes of information). Todays, floppy disks are no longer used because of the limited capacity.
The next is about computer programs. Programs are also the software that you can install in and remove from your computer. When you like to edit some photos, you need to try Adobe Photoshop, Photoscape, and other photo-editing programs. If you want to edit audio, you can use Adobe Audition and Cool Edit Pro. There are some other programs such as Corel Draw, 3D Max, some games, Microsoft Office, Internet Download Manager, Oxford Dictionary, etc. Then, when we are talking about the function of both computer and laptop, both help us very well. We can use them to type, to calculate, to have fun, etc. We can install some programs that can help our work. Also, if we install some games in our computers, we can enjoy the games whenever we want to refresh our mind.
In short, when we set a same adjustment, spesification, and programs in our computer and laptop, we can get the same service from both machines, even though they have different shapes. Thus, we should not think hard about  differences only, but we should consider the similarities between computers and laptops because absolutely they are just the same in function.

by Wahyu Kartika Wienanda

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