mAiN cOmPonents Of CoMpUtEr

copy and paste from http://ictlisfun.blogspot.com/2011/07/main-component-of-computer.html

1. Monitor :

The monitor or screen is a visual display unit, often called simply a monitor or display, is a piece of electrical equipment which displays images generated from the video output of devices such as computers, without producing permanent record.

2. Keyboard :

- The keyboard is used to type text and numbers into a word processor, text editor or other program.

- In a modern computer, the interpretation of key presses is generally left to the software.

- A computer keyboard distinguishes each physical key from every other and reports all key presses to the controlling software.

- Keyboards are also used for computer gaming, either with regular keyboards or by using keyboards with special gaming features, which can expedite frequently used keystroke combinations.

- A keyboard is also used to give commands to the operating system of a computer, such as Windows' Control-Alt-Delete combination, which brings up a task window or shuts down the machine. It is the only way to enter commands on a command-line interface.

3. Speaker

- The computer speaker is an output device which gives the user auditory feedback regarding the state of the computer.

- This can be as sophisticated as a 8-channel surround-sound system for playing movies and the like, or as basic as the integrated "beeper speaker" whos only role is indicate critical errors in the boot sequence when video output is not available.

4. Mouse 

- This piece of computer hardware connects to your computer to help you control cursor movement and pointing ability on the PC screen.

- A computer mouse makes navigation simple by allowing you to freely move your cursor around your screen. This allows you to perform functions of your computer with ease. Mice are known for the ease they give point and click navigation.

bE aWarE To cOmPuTeR ViRuSeS!!!

copy and paste from http://www.wikihow.com/Avoid-Getting-a-Computer-Virus-or-Worm-on-Your-Windows-PC

STEP 1
Never click on a link or attachment in an email that you are not positive is from a trusted source. If you think the e-mail looks suspicious, it probably is. It never hurts to send an email to verify that this is legitimate.

If you use an email-retrieving program, disable image previews. Email applications like Outlook, Thunderbird, and others often automatically load attachments for your convenience, but this takes away your ability to decide whether or not a file is safe to open. Check your preferences to disable this setting.

STEP 2

Be wary of files with a double extension such as .txt.vb or .jpg.exe. As a default setting, Windows often hides common file extensions, meaning that a program like Paint.exe will appear to you as simply Paint. Double extensions exploit this by hiding the second, dangerous extension and reassuring you with the first, safe extension – which is utterly meaningless to your computer; your system only recognizes the extension to the extreme right and run the file as such. If a common file type whose extension you never normally see suddenly becomes visible for no apparent reason, right-click on it, select Properties, and look for the complete file name. You may be surprised to find out what kind of extension it really has.

To make you file extensions visible, find Folder Options in your Control Panel. (Note that it may be tucked away in Appearance and Personalization or something to that effect.) Under the View tab, scroll down to Hide Extensions for Known File Types and make sure it is unselected.

STEP 3

Use USB drives with caution. Plugging someone else’s USB drive into your computer (or plugging your own into a computer at, say, an internet café) can spread an infection via the drive itself, not the file you’re actually trying to share. Whenever possible, transfer files between machines via email to keep potentially-infected hardware out of the equation.

tHe MoSt PoPuLaR bRand of cOmPuTeR

copy and paste from  http://www.telegraph.co.uk/technology/8385633/The-top-10-most-popular-laptop-brands.html Rank	Brand	Love %	Msgs
1	Apple	64.78	25,827
2	LG	71.81	1,724
3	Sony	52.34	2,432
4	Panasonic	78.00	150
5	Asus	62.50	168
6	HCL	56.76	37
7	Hewlett Packard	52.38	21
8	Packard Bell	20.00	5
9	Medion	0	8
10	Fujitsu	28.57	42
	Avg Laptop Brands	59.04	34,818

whatever brand that do you have, actually they have the same basic components :)

tHe HiStOrY oF cOmPuTeR

copy and paste from www.historyofcomputer.org/‎

First Generation Computers (1940s – 1950s)

First electronic computers used vacuum tubes, and they were huge and complex. The first general purpose electronic computer was the ENIAC (Electronic Numerical Integrator And Computer). It was digital, although it didn’t operate with binary code, and was reprogrammable to solve a complete range of computing problems. It was programmed using plugboards and switches, supporting input from an IBM card reader, and output to an IBM card punch. It took up 167 square meters, weighed 27 tons, and consuming 150 kilowatts of power. It used thousands of vacuum tubes, crystal diodes, relays, resistors, and capacitors.

The first non-general purpose computer was ABC (Atanasoff–Berry Computer), and other similar computers of this era included german Z3, ten British Colossus computers, LEO, Harvard Mark I, and UNIVAC.

Second Generation Computers (1955 – 1960)

The second generation of computers came about thanks to the invention of the transistor, which then started replacing vacuum tubes in computer design. Transistor computers consumed far less power, produced far less heat, and were much smaller compared to the first generation, albeit still big by today’s standards.

The first transistor computer was created at the University of Manchester in 1953. The most popular of transistor computers was IBM 1401. IBM also created the first disk drive in 1956, the IBM 350 RAMAC.

Third Generation Computers (1960s)

The invention of the integrated circuits (ICs), also known as microchips, paved the way for computers as we know them today. Making circuits out of single pieces of silicon, which is a semiconductor, allowed them to be much smaller and more practical to produce. This also started the ongoing process of integrating an ever larger number of transistors onto a single microchip. During the sixties microchips started making their way into computers, but the process was gradual, and second generation of computers still held on.

First appeared minicomputers, first of which were still based on non-microchip transistors, and later versions of which were hybrids, being based on both transistors and microchips, such as IBM’s System/360. They were much smaller, and cheaper than first and second generation of computers, also known as mainframes. Minicomputers can be seen as a bridge between mainframes and microcomputers, which came later as the proliferation of microchips in computers grew.

Fourth Generation Computers (1971 – present)

First microchips-based central processing units consisted of multiple microchips for different CPU components. The drive for ever greater integration and miniaturization led towards single-chip CPUs, where all of the necessary CPU components were put onto a single microchip, called a microprocessor. The first single-chip CPU, or a microprocessor, was Intel 4004.

The advent of the microprocessor spawned the evolution of the microcomputers, the kind that would eventually become personal computers that we are familiar with today.

who is me?

hello, i'm a person who like to blog very much and i'm crazy maccaroon. i'm come from Johor Bahru and i'm 21-year-old sweet girl. huihui. now i'm studying at Uitm Kuala Pilah , Negeri Sembilan course Diploma in Science.