Gigabit Ethernet, a transmission technology based on the Ethernet frame format and protocol used in local area networks (LANs), provides a data rate of 1 billion bits per second (one gigabit). Gigabit Ethernet is defined in the IEEE 802.3 standard and is currently being used as the backbone in many enterprise networks. Gigabit Ethernet is [...]
Entries from February 28th, 2010
Gigabit Ethernet and 10 Gigabit Ethernet: Technology overview
February 28th, 2010 · No Comments · Comparisons, Introductions, Networking
Tags: 10 gigabit ethernet·10GBASE-T·data transfer speed·gigabit·ieee 802.3a·networking
What is eSATA?
February 28th, 2010 · No Comments · Hard Drives, Interfaces, Introductions
External Serial Advanced Technology Attachment or eSATA is an external interface for SATA technologies. It competes with FireWire 400 and universal serial bus (USB) 2.0 to provide fast data transfer speeds for external storage devices. SATA replaced ATA legacy technology as the next generation internal bus interface for hard drives. The SATA interface is more [...]
Tags: eSATA·external port·external storage device·interface·SATA
Introduction to Wireless Network Security
February 28th, 2010 · No Comments · Concepts, How To Keep Secure, Introductions, Networking, Security
It wasn’t too long ago that computers were a luxury rather than a necessity. Only the lucky and the wealthy had even one in their home and a network was something reserved for large corporations. Fast forward a decade or so and everyone has to have their own computer. There is one for the parents [...]
Tags: encryption·ESSID·hacker·security·SSID·WEP·Wireless network·wireless network security·WPA
Uninterruptable Power Supplies (UPS) explained
February 25th, 2010 · No Comments · Introductions, Power Protection
How would you feel if someone pulled the power cable out of your Mac (or PC) right now, without warning? If there was a power failure this is effectively what would happen, and you could lose data or your entire computer as a result. Guard yourself against such an event with a UPS device. The [...]
Tags: computers·MAC·power failuer·uninterreptable power supply·UPS·windows
DVI and VGA Monitor Formats Explained
February 22nd, 2010 · No Comments · Introductions, VGA
The facts VGA, which stands for Video Graphics Array, has been the standard method for connecting monitors to Macs since the late 1990s and to PCs for some years before then. The newer DVI format, which stands for Digital Video Interface, is the preferred connection method for most non-budget LCD displays, a number of higher-end [...]
Tags: analog·digital·DVI·monitor video interface·Monitors·VGA
Digital Visual Interface (DVI) Explained
February 22nd, 2010 · No Comments · DVI, Introductions
We always complain about relatively minor differences in performance between chipsets, motherboards and even CPUs yet very little attention is paid to one of the most important aspects of computing – video output quality. Over the past few years, as 19″ and 21″ monitors have become more common users began noticing that the output from [...]
Tags: ATI·digital visual interface·display·DVI·DVI-D·DVI-I·graphic cards·Nvidia·Video Cards
Understanding CRT Monitor Specifications
February 22nd, 2010 · No Comments · Computer Displays, How To Buy, Introductions
Cathode Ray Tube or CRT monitors are the oldest form of display for PC computer systems. Many of the earliest computers had their displays output to a standard composite video signal to be displayed on a regular TV. As time progressed, so did the level of technology used for computer displays. With the advent of [...]
Tags: cathode ray tube·computer monitor·CRT monitor·display·screen