Selasa, 29 Mei 2012

RAM FUNCTION AND ITS SPECIFICATION

RAM or Random Access Memory is a main remembering for computer. RAM location is near with processor. It is important so that the data between RAM and processor can be delivered sensibly.
RAM function is to hold instruction and data which will be processed by processor. RAM is volatile character, that is for data which kept by RAM will lost if computer switched off.
In this case are many examples for it. For example of RAM usefulness, at the time you open this blog, your computer RAM is being filled by the data that explain this blog. But, the others will lose from RAM if computer switched off on that account; we need storage for the effect data storage. 
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DO YOU KNOW RAM?

Memory is device that its function is to process data or instruction. The greater memory which provided more and more data and instruction that can be processed.
RAM is a device that its function to save the data. RAM is tentative or saved data can be deleted. Difference with ROM, ROM has function that equals with RAM but ROM is permanent or saved data can't be deleted.
            Random Access Memory or RAM is a computer storage which its content can be accessed in the constant period; it is not care about data position is memory. This is variance with massage memory device, as tape of magnetic, disk and drum, whereabouts movement mechanical of storage media forces computer to access the data alternately.
It is first known in 1960. Just in that time, it is semiconductor memory and not yet popular because its price is very expensive. That time it is more common to use magnetic main memory. Semiconductor Company such as Intel begins its debut with produces RAM, more correct is DRUM type.
            RAM usually can be written and read, variance with Read Only Memory or ROM, RAM usually being used for main memory in computer to be used and changes information in an active manner, even several devices use some RAM type to provide a long-term secondary.
But there is also that opines that ROM is other type of RAM because its character that actually also random access as well as SRAM or DRUM. Just really writing process in ROM needs to special process that not easy and flexible as well as in SRAM or DRUM. Besides that, several parts of space address RAM of a system which is mapped into one or two ROM chip.
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COMPUTER HARDWARE

In technology world, a lot of computer hardware that we always need to use them, because they are very important and be invaluable aids our work in this life.
1.    CPU (Central Processing Unit)
It is a device that has a functioning as data processor. CPU contains combination of circuit that keeps processing instructions and save the data.
2.    Monitor
It is a device that can feature texts or image from data that being processed by CPU.
3.    Keyboard
It is a device that to insert data and also instruction to CPU, it usually comprise of font series, number, and another function key.
4.    Mouse
It is an assist device for give an instruction in process the data or edits data.
5.    Printer
Printer is a device that produces output of data to print form such as text and also image.
6.    CD-ROM
It is an additional device that can save and write the data and program via CD media. This device is designed for write and read the data or program via optic system.
7.    Compact is Disk (CD)
Saving media that made in plastic stuff. Saving process and reading data use optic system.
8.    Scanner
Scanner is an assist device to insert data such as picture or graph and changes it into digital form so it gets to be processed and combined with data form that as text.
9.    USB Flasdiks
It is a data saving that liked by human because it is big and medley capacity
10. Hardddisk
Harddisk is an addition device to saving the data in a big capacity that is coated magnetically; now developing harddisk is very fast from energies accommodation and speed of reading data.
11. Floppy Disk
Floppy Disk is an addition device for saving and writing into diskette and also on the contrary, measure that generically been used is size 3,5 inches. And now, it is unsearchable.
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DO YOU KNOW HARDWARE AND SOFTWARE?

There are many theories about hardware and software but according to me, they are as follow:
Hardware is device that hard and software is device that soft. That its translation. But also we can give the meaning as follows:
Hardware is hard tool or object that we can see, touch, hold and it has particular function. Physically there have shape. There is its form.
Hardware's device comprise of three types, which is:
  1. Input device
The function of Input device is to insert data such as text, photo and also image into computer. The examples of input device are keyboard, the mouse, light pen, scanner, etc.
  1. Output device
Output device used to take in data and result data that is issued such as monitor and printer.
  1. Processor
Data processor device used to process data. Data processor covers central processor unit such as CPU or Central Processing Unit and also microprocessor.
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Senin, 28 Mei 2012

TAKE CARE OF YOUR LAPTOP TIPS

Laptop is electronic goods that really sensitive, if it is not guarded properly and you don’t do care aright therefore your laptop will often come in to service Laptop's place. Laptop's component also very expensive than PC's Component. To avoid fumble your pocket money, you do Take care of your laptop tips trick
1.    Don't download promiscuously of free from internet. Most even more e.g. software which pretend as an antivirus. Utilize software which already you get from laptop's packages that you buys. The risk of virus can corrupt your laptop if you promiscuously utilize software from Internet. If You decided want to make software from download, firm you scan that software with antivirus that You has.
2.    Don't give casing anything include laptop’s case at the moment that your laptop in a blaze situation because the processor laptop will die because no air circulation under Laptop's surface.
3.    According to survey, commonest laptop damage happen on hard disk and LCD’s display. hard disk’s damage caused by bump or fall. LCD's damage usually because sun-shine flat and physical pressure.
4.    Neat adaptor's cables or other cables that be most link with laptop, don’t until make stumble others.
5.    Besides damage hard disk and LCD, liquid spill is laptop's damage cause that commonest, or vesture one sheet of the so called transparent film ‘keyboard protector’.
6.    Avoid vibration and keeps away laptop from megaphone, e.g. loudspeaker, machine /weight vehicle, and another vibration source.
7.    Avoid laptop from x-ray at airport.
8.    Keep clean laptop, mop with clear cloth or cotton so that it free from dust.
9.    In Asian climate, moist temperature can become a big problem for laptop which is designed at USA. To reduce pretty many problems, ensure laptop saved at dry and balmy place. If laptop doesn't be used for long time, keep laptop in close place and insert silica gel. This silica gel is as well as that available in salving bottle, electronic things pack. Or it can be bought at chemical material shop. This silica constitutes chemical material that gets Hygroscopes’ character (absorbing steam / humidity).
10. Extinct electricity and invasive tension can occur every time, at home, at hotel room or at office. If enables, use ’surge protector’ if you are using AC Outlet. And don't forget to make back up data routinely.
11. Always use laptop's bag while be journeys.
12. If wants to package laptop to been transferred or for need any other, utilize strong protecting box, and packages by spume or vibration absorptive sponge.
13. Don't every now and again couch the heavy object upon laptop.
14. If laptop has a problem, don't try to uncover alone. Handing over to technician or service center is hovered. Since maybe just damage on the contrary wills be get weight. Special for laptop what do be still deep term warrant to uncover laptop can wreck sticker warranty (warranty seal) one that still clings on laptop.
15. While will lift laptop that being opened, don't lift it while holding on display part, lift at down section or keyboard.
16. Don't plug laptop's modem cable on PBX (private branch exchange) or digital telephone channel. Laptop just gets to utilize PSTN'S channel (public-switched telephone network). Channel purpose calls up besides PSTN can corrupt laptop's modem.
17. Take care laptop's battery, don’t it until leak because it can corrupt battery slot.
18. Don't move laptop upon stills life. Laptop that be life, its hard disk also be works so if be moved, it can bring on hard disk scratches cylinder so will be fatal.
19. Keep away laptop from strong magnetic field, molten material and heat source/cold or extreme temperature change.
20. Avoid direct the sun shines and ensures laptop always being placed on rolled out surface.
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INTRODUCTION

I am very happy with the science of English, but behind of all that I really miss the sciences of computer such as about the internet and all about the programmer.
Therefore I created this blog, so I can learn it again, that is about computer science that I love.
Hopefully it all worthwhile, especially for my own, and generally make the readers of this blog. amen.
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