Laptop Computer Bottom Access Covers
Laptops are made easy to upgrade and repair by the location of access covers on the bottom of the computer. Covers are placed there for access to frequently upgraded components like the hard drive and the memory. More ...
Digital Video Interface (DVI)
Today's computers use LCD (Liquid Crystal Display) displays. LCDs are a digital device. It makes little sense to convert the digital image data to analog just to convert it back to digital to display on the LCD. To avoid this double conversion, the DVI (Digital Video Interface) standard was developed. More ...
Rambus DRAM (RDRAM)
Rambus DRAM (RDRAM) is a proprietary memory technology, designed by the Rambus Corporation, that is found in some Pentium III and Pentium 4 systems built between 2000 and 2002. When it was introduced it run at faster speed than conventional SDRAM. When DDR SDRAM was released, RDRAM became obsolete. More ...
How a laser Printer Works
Laser printers work by using a laser beam to transfer an image to an electrically charged, photo-sensitive drum. The charge on the drum attracts toner ink, which is transferred to the paper. The primary steps in the laser printing process are listed below. More ...
CPU Sockets Roundup
For current and upcoming motherboards, the PGA package is being replaced by the LGA (Land Grid Array) package. With a LGA the pins are on the socket and they make contact with gold-plated copper pads on the processor. More ...
Installing an Optical Drive
Optical drives read (and may write) CDs; DVDs, HD DVDs; and BluRays. Virtually every modern PC contains an optical drive (either internally or externally), used as a media player, for installing new software, or as large capacity storage medium for computers. Installing your optical drives is an easy process that requires a bit of attention to detail. Here?s an easy-to-follow-installation guide. More ...
History of the QWERTY Keyboard
In the late 1860s, American inventor Christopher Scholes developed the first typewriter. The keys were originally laid out in alphabetical order, but this led to problems with the type bars jamming when typing at speed. To remedy this, Scholes relocated the keys to keep the most frequently used letters apart, resulting in the QWERTY keyboard. More ...
What You Need To Know About Server Memory
DDR is Double Data Rate which is what all memory is now. Since DDR came out it's gone through a few generations DDR, DDR2, DDR3 and now DDR4. These different generations of memory have different peak transfer rates. More ...
Build Your Own Computer
Before you begin make sure you have all the tools you need and a clean space to work. Make sure you have all required tools and materials. Unpack the materials once package at a time and inspect them to make sure they are not broke or defective. More ...
The Computers Back Connector Panel
So although the computer's back panel appears to be a complicated mess, each connector has a specific shape, number and pins, and polarity key that allows only the proper cable to be plugged in. If you get a nice comfortable feeling like your not smashing pins when you plug a cable in, then you can feel secure that nothing will blow up. More ...
Basic PC Anatomy Inkjet Printers
There are two main inkjet technologies, thermal and piezo-electric. Thermal technology uses silicon wafer heating elements, Epson uses a proprietary piezo electric technology. More ...
The Chemistry of Laptop Batteries Explained
Laptop batteries come in all shapes and sizes also differ in their chemical composition. The chemistry of a battery refers to the chemical make-up of the cells inside the outer casing. This artilce explains the most common chemistries used in laptop batteries. More ...
Understanding Your Motherboard
Understanding your motherboard is about pointing out what the bits of your motherboard actually do, if you are not used to building or upgrading your own machine you will want to know the ins and outs of the motherboard. More ...
How is Data Written, Stored On, and Erased From Hard Disks?
Inside your hard disk is a stack of one or more optically perfect platters where data is stored magnetically. When the drive is originally formatted, it is laid out in a pattern of concentric circles (cylinders) and wedges (sectors). More ...
