1. What
does dyownloading mean?
When you download
something, you are transferring data from another computer to your computer,
usually over the internet.Say you are a solitaire player and have decided that
you would like to have a variety of solitaire games to play on your computer.
You browse the internet and find a free program called 123 Free Solitaire 2009.
(By the way, I’ve seen reviews that indicate that it’s great for solitaire
addicts.) The site says to ‘Download here” (or something equivalent to that).
You click on the button because you would like to transfer the game from the
web site to your computer; you would like to download it. After you click on
the ‘Download here” button, a box will pop up that looks like this:
2. Explain the basics of how the internet
works.
A
client computer is a computer requesting data
or services. A server,
or host computer, is
a central computer supplying data or services requested of it.
·
Internet
Connections: POPs, NAPs, Backbone, & Internet2
·
Internet
Communications: Protocols, Packets, & Addresses
3. What is open-source software?
software,
or programs, consists of all the
electronic instructions
that tell the computer how to perform a task. These
instructions come from a
software developer in a form (such as a CD or DVD,
USB drive, or an internet
download) that will be accepted by the computer.
Application software is software that has been developed to solve a particular
problem for users—to perform useful work on specific tasks
or to
provide entertainment.
4. Why should measures of capacity matter to computer usur
Microchips, Miniaturization, & Mobility What are the differences between
transistors, integrated circuits, chips, and
microprocessors?
The System Unit: The Basics How is data represented in a computer, what are
the components of the system cabinet, and what are
processing speeds?
More on the System Unit How do the processor and memory work, and what
are some important ports, buses, and cards?
Secondary Storage What are the features of floppy disks, hard disks, optical
disks, magnetic tape, smart cards, flash memory,
and online secondary storage?
Future Developments in Processing & Storage What are some forthcoming
developments that could affect processing power and
storage capacity?
5. What is pixel short for? What is a pixel?
pixel, pel,[1] dots, or picture element[2] is a physical point in a raster image, or the smallest addressable
element in an all points addressable display device; so it is the smallest
controllable element of a picture represented on the screen. The address of a
pixel corresponds to its physical coordinates. LCD pixels are manufactured in a
two-dimensional grid, and are often represented using dots or squares, but CRT pixels
correspond to their timing mechanisms and sweep rates.
Each pixel is a sample of an original image; more samples
typically provide more accurate representations of the original. The intensity of each pixel is variable. In color
imaging systems, a color is typically represented by three or four component intensities
such as red, green, and blue, or cyan, magenta, yellow, and black.
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