Wednesday, October 1, 2008

Moved to new blog ...

I've decided to make a blog be more specific in details. So I can give more useful information to all visitors. Since now my blog will focus on mouse things ^^

Others computer-oriented site may be built soon later.

Thank you all for visiting.

Here's the address of my new blog.

World Mouse Center


Buying a new Mouse: Guide

There are many kinds of mouse you can find in the market nowadays, which are varying in price and function. You may wonder which one you should buy, which one would suit to your need.

Here is some information to help you get more understanding what are you going to pay for. I hope that it can help you find the best one that you are looking for.

Step I.
First of all, you should take a look at the back of your computer case and find the port. Normal PC should have a PS/2 port which has a shape like the picture shown below.

The green one is PS/2 port for mouse

But for laptops, most them don't have this connector. They use the USB port instead. The USB port has a shape like the picture shown below.

The USB port and connector

Nowadays, the used of USB port is keep increasing rapidly. Sometimes you may find that it hard to find a PS/2 version of the mouse that you want to buy. However, there's a PS/2-USB adaptor available in the market.

Step II.
Wheel, Optical or Laser?? You may wonder what is different between these kinds of mouse. For wheel mouse is kind of outdated in present. It's quite hard to find one in the market nowadays so I wouldn't mention it and I won't recommend you to buy it. The different between Optical mouse and Laser mouse is that the Optical mouse uses an infrared to track the movement of patterns on the surface. It need a mouse pad to work well. For laser mouse, it uses an invisible light instead. It can be used on surfaces with less defined texture such as metal or dark woodgrain desktops without mouse pad needed. For example, try using an optical mouse on a piece of high gloss photo paper and it'll probably not move while a laser mouse is still able to see surface detail. But the price of laser mouse is, of course, higher than the optical one.

Step III.
Corded or Cordless?? I've made a post of this question already. Please take a look.
Here is the link ... Corded VS Cordless Mouse

Step IV.
Next, you should decide that which kind of job that you want your new mouse doing for you.

  • For basic users - I'll recommend that you should buy any mouse that has a reasonable price, acceptable durability in a color and style that you like. But you should concern about the size as well, choose the mouse that has a suitable size with your hand.
  • For internet users - I'd recommend you to buy a mouse that has a scroll wheel button. It's a must !!
  • For advanced users - You'd know quite much about these mice. The thing I'd recommend is find a mouse that have many buttons which you can bind it to perform specific task, it' ll save you a lot of time. Just find one that suit to your working style.
  • For gamers - There are many mice that design for gamers available in the market. I' ll make a post of these mice in details later. The link will be placed here soon.

Step V.
For advanced users and gamers. The things you should know before select the mouse is:

DPI or Dots Per Inch - The DPI is the amount of Dots per inch the optical sensor can read. The Higher DPI means more sensitive the mouse can be. High and adjustable DPI mouse is suits for gamers, especially Action or FPS(First Person Shooting) gamers.

A good gaming example would be in a first person shooter when many gun types are used. When roaming free you will want a high DPI on your mouse so that a quick movement can be performed with ease. However when sniping a lower DPI will help with a much slower movement giving greater accuracy in this instance. If you do a lot of gaming or have reason to believe that changing the DPI will be beneficial to you then a mouse with on-the-fly DPI changing will be a great use.

Step VI.
Choose brand, color, and style.
I'll make a post of mouse brands analysis in details later. The link will be placed here soon.

Step VII.
Make a decision and buy one !!

Hope this post will help you, and enjoy with your new mouse ^^


Tuesday, September 30, 2008

Corded VS Cordless Mouse

Some people keep asking what are the advantages and disadvantages of corded and cordless mouse, and which one should they buy it. Here is the result that I have found so far.

Advantages of Corded Mouse:

  • Battery. You don’t have to worried about recharging the battery. Sometimes it’s quite annoying if the battery running out while you are doing something important. Moreover, the battery price seem to be more expensive compare to the electricity cost.
  • Durability. Corded mouse usually has a longer life.
  • Easy-to-use. Just plug-in, that’s all. You don’t have to install any driver or synchronize your mouse with the signal receiver.
  • More Reliable. However, many brand new cordless mice have a high level of reliability as well but, of course, it comes with a much higher price.
  • Price. Corded mice price are much cheaper in the same level of product quality. This is the main issue that people choose the corded mouse instead of the cordless one.
  • Signal. Sometimes cordless mice may have a signal interruption problem from other devices or cannot connect to the signal receiver. But this issue has been improved in the newer version of cordless mouse.

Advantages of Cordless Mouse:

  • Brand new technology, cool-looking.
  • No more tangle of cords on your table.
  • More freely to move.

From the experience of users I’ve found so far over the internet. More than 70% satisfied prefer the corded mouse, and the main problems that have been complaint most often is the battery and price issues.

However, many cordless mouse users satisfied with their mouse as well.

In my opinion, I have both corded and cordless mouse and I like both of them. The only difference thing to me is just the price. If you think that it’s worth paying more for remove the cord. Then the cordless mouse is your choice !!


Sound Card

A Sound Card (also known as an audio card) is a computer expansion card that facilitates the input and output of audio signals to/from a computer under control of computer programs. Typical uses of sound cards include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation/education, and entertainment (games). Many computers have sound capabilities built in, while others require additional expansion cards to provide for audio capability.

The Creative PCI Express Sound Blaster X-Fi Titanium Fatal1ty Professional

Source: Wikipeida

Video Card

A Video card, also known as a graphics accelerator card, display adapter, or graphics card, is a hardware component whose function is to generate and output images to a display. It operates on similar principles as a sound card or other peripheral devices.

The term is usually used to refer to a separate, dedicated expansion card that is plugged into a slot on the computer's motherboard, as opposed to a graphics controller integrated into the motherboard chipset. An integrated graphics controller may be referred to as an "integrated graphics processor" (IGP).

Some video cards offer added functions, such as video capture, TV tuner adapter, MPEG-2 and MPEG-4 decoding or even FireWire, mouse, light pen, joystick connectors, or even the ability to connect multiple monitors.

A common misconception regarding video cards is that they are strictly used for Video games; a misconception that companies take advantage of in order to sell their products by advertising their products as if they were in fact video consoles. Video cards instead have a much broader range of capability. Being specialized for video output Video Cards improve what a computer monitor displays. As well, they play a very important role for Graphic Designers and 3D Animators, who tend to require optimum displays for their work as well as faster rendering in order to efficiently tone up their work.

The Geforce 9800 GTX Video Card

Source: Wikipedia

Hard Disk Drive

A Hard Disk Drive (HDD), commonly referred to as a hard drive, hard disk, or fixed disk drive, is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Strictly speaking, "drive" refers to a device distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk. Early HDDs had removable media; however, an HDD today is typically a sealed unit (except for a filtered vent hole to equalize air pressure) with fixed media.

Originally, the term "hard" was temporary slang, substituting "hard" for "rigid", before these drives had an established and universally-agreed-upon name. A HDD is a rigid-disk drive although it is rarely referred to as such. By way of comparison, a floppy drive (more formally, a diskette drive) has a disc that is flexible. Some time ago, IBM's internal company term for a HDD was "file".

HDDs (introduced in 1956 as data storage for an IBM accounting computer) were originally developed for use with general purpose computers; see History of hard disk drives.

In the 21st century, applications for HDDs have expanded to include digital video recorders, digital audio players, personal digital assistants, digital cameras and video game consoles. In 2005 the first mobile phones to include HDDs were introduced by Samsung and Nokia. The need for large-scale, reliable storage, independent of a particular device, led to the introduction of configurations such as RAID arrays, network attached storage (NAS) systems and storage area network (SAN) systems that provide efficient and reliable access to large volumes of data. Note that although not immediately recognizable as a computer, all the aforementioned applications are actually embedded computing devices of some sort.

Types of Hard Disk

  • IDE or Integrated Drive Electronics - The IDE hard disk is until know the most used hard disk in computers but in the future the SATA hard disks will be used more and more. A IDE hard disk is later renamed to ATA, and then later to PATA (Parallel Advanced Technology Attachment, to distinguish it from the new Serial ATA). This means Parallel ATA and can transmit data on a normal speed and is a bit slower then the SATA hard disks. You can recognize a IDE hard disk at the connector. It has a 40 pins connector and it has quite a big power connector.

  • SATA or Serial Advanced Technology Attachment - A SATA hard disk works the same as an IDE hard drive but this type has a higher speed than the IDE hard disk. Also the connectors are a bit different then the IDE hard disk. You can recognize a SATA hard disk at the connector and it has a smaller power connector then the IDE hard disk. This hard disk is more and more used and probably it will replace the IDE hard disks.

  • SCSI or Small Computer System Interface - SCSI hard disks are much faster then the IDE or SATA hard disks. SCSI hard disks are mostly used for professional systems which need fast data access. These types of hard disks are often not used in home situations because they are more expensive then a IDE or SATA hard disk and in a home situation you don’t need that high speed. Mostly these hard disks are used in servers. You can recognize a SCSI hard disk at the connector and it has the same power connector then the IDE hard disk.

  • USB or Universal Serial Bus - This type of data storage medium is not installed in the computer but it can be attached to it using the USB interface. This is an external hard disk, also called a portable data storage device. This type of hard disk can be useful if you have a laptop with a small hard disk inside, you can use a USB hard disk to store your data on. These hard disks are a bit slower then the IDE or SATA hard disks. The speed also depends on the type of USB interface you attach it to. There are USB 1.1 interfaces and USB 2.0. Be sure you attach it to a USB 2.0 interface to let the hard disk work faster.

  • FireWire - A FireWire hard disk works the same as a USB hard disk and is also an External hard disk. The only difference is that a USB hard disk is attached to the computer using the USB interface and a FireWire hard disk uses the FireWire interface. A FireWire hard disk is also a bit faster than a USB hard disk. But your computer has to have a FireWire interface and not every computer has such interface where a USB interface is almost on every computer.

About your computer

Random Access Memory

Random-access memory (usually known by its acronym, RAM) is a type of computer data storage. Today it takes the form of integrated circuits that allow the stored data to be accessed in any order, i.e. at random. The word random thus refers to the fact that any piece of data can be returned in a constant time, regardless of its physical location and whether or not it is related to the previous piece of data.

This contrasts with storage mechanisms such as tapes, magnetic discs and optical discs, which rely on the physical movement of the recording medium or a reading head. In these devices, the movement takes longer than the data transfer, and the retrieval time varies depending on the physical location of the next item.

The word RAM is mostly associated with volatile types of memory (such as DRAM memory modules), where the information is lost after the power is switched off. However, many other types of memory are RAM as well (i.e. Random Access Memory), including most types of ROM and a kind of flash memory called NOR-Flash.

Types of RAM

  • FPM RAM, which stands for Fast Page Mode RAM is a type of Dynamic RAM (DRAM). The term Fast Page Mode comes from the capability of memory being able to access data that is on the same page and can be done with less latency. Most 486 and Pentium based systems from 1995 and earlier use FPM Memory.

  • EDO RAM, which stands for Extended Data Out RAM came out in 1995 as a new type of memory available for Pentium based systems. EDO is a modified form of FPM RAM which is commonly referred to as Hyper Page Mode. Extended Data Out refers to fact that the data output drivers on the memory module are not switched off when the memory controller removes the column address to begin the next cycle, unlike FPM RAM. Most early Penitum based systems use EDO.

  • SDRAM, which is short for Synchronous DRAM is a type of DRAM that runs in synchronization with the memory bus. Beginning in 1996 most Intel based chipsets began to support SDRAM which made it a popular choice for new systems in 2001.
    SDRAM is capable of running at 133MHz which is about three times faster than FPM RAM and twice as fast as EDO RAM. Most Pentium or Celeron systems purchased in 1999 have SDRAM.

  • DDR RAM, which stands for Double Data Rate RAM is a type of SDRAM and appeared first on the market around 2001 but didn’t catch on until about 2001 when the mainstream motherboards started supporting it. The difference between SDRAM and DDR RAM is that instead of doubling the clock rate it transfers data twice per clock cycle which effectively doubles the data rate. DDRRAM has become mainstream in the graphics card market and has become the memory standard.

  • DDR2 RAM, which stands for Double Data Rate 2 RAM is a newer version of DDR which is twice as fast as the original DDR RAM. DDR2RAM came out in mid 2003 and the first chipsets that supported DDR2 came out in mid 2004. DDR2 still is double data rate just like the original DDR however DDR2-RAM has modified signaling which enables higher speeds to be achieved with more immunity to signal noise and cross-talk between signals.

  • RAMBUS (RIMM) RAM is a type of ram of its own, it came out in 1999 and was developed from traditional DRAM but its architecture is totally new. The RAMBUS design gives smarter access to the ram meaning that units can prefetch data and free some CPU work. The idea behind RAMBUS RAM is to get small packets of data from the RAM, but at very high clock speeds. For example, SD RAM can get 64bit of information at 100MHz where RAMBUS RAM would get 16bits of data at 800MHz. RIMM ram was generally unsuccessful as Intel had a lot of problems with the RAM timing or signal noise. RD RAM did make an appearance in the Sony Playstation 2 and the Nintendo 64 game consoles.