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Glossary
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Resolution
The degree of sharpness and clarity of an image. Resolution is expressed in pixels. Frequent
computer screen resolutions are 640 x 480 pixels (VGA resolution; appropriate for a 14-inch
screen), 800 x 600 (appropriate for a 15-inch screen), 1024 by 768 (appropriate for a 17-inch
screen), and 1280 by 1024. LCD displays usually use a higher resolution than a CRT of the
same size.
RGB signal cable
RGB stands for Red, Green, Blue. A cable that requires separate transmission types for the
three colours on the display.
SDRAM
Synchronous DRAM is a kind of dynamic random access memory running at a much higher
clock speed than regular memory.
SELV
Short for Safety Extra Low Voltage. A secondary circuit which is so designed and protected
that its voltages do not exceed a safe value under normal operating conditions.
Standard RAM
The amount of RAM that is available on your computer when you purchase it.
System recovery
A recovery process that enables you to recover the hard disk image initially available on the
computer. Performing a system recovery is useful in the event of a serious system crash or if
you want to modify the size of your partitions.
System recovery CD-ROM
CD-ROM that is supplied with your computer and that enables a VAIO computer user to
recover the hard disk image that was available when the computer was purchased.
TFT
Short for Thin Film Transistor. Top-of-the-range notebook display for excellent picture
quality. The TFT technology offers the sharpest resolution for flat displays; each pixel is
supported by one to four transistors.
TNV
Short for Telecommunications Network Voltage. A secondary circuit that, under normal
operating conditions, carries telecommunication signals. A typical TNV-circuit is a PSTN
(Public Switched Telephone Network) modem.
Term
Definition
