Cognitive Artifacts & Windows 95
.... worrying about whether he/she remembered to include all the commands. On
the side of personal views the user may see the wizard as a new task to learn
but in general it is simpler than having to configure the application yourself
and making an error, that could cause disaster to your system. The wizard also
prevents the user from having to deal with all the internal representation of
the application like typing in command lines in the system editor.
Within Windows 95 most of the representation is internal therefore we
need a way to transform it to surface representation so it is accessible to the
user. According to Norma .....
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Networks
.... Fewer peripherals also can
translate into lower maintenance costs and lower capital investments on the
system as a whole.
TYPES OF NETWORKS
Networks fall into two categories: Server-Client, and Peer-To-Peer.
Server-Client is often the fastest (and more expensive) of the two
systems. In this setup one computer is designated as the Server, with the
sole purpose of providing access to data, applications, and other resources.
The server is dedicated to serve the other computers on the network.
Usually (but not always) the server will consist of several large hard
drives, backup hardware and more powerful CPU's than other .....
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Communication Over The Internet, And The Effects It Will Have On Our Economy
.... their own
downfall.
· Methods of communication over the net
-There are many ways of communicating over the net: Inter relay chat (text only)
-Video/Audio: there are many net applications which allow the user to simply
plug in a mini video camera( which can be purchased anywhere from $150+) and
speakers and a microphone and establish a net connection and be able to view to
and hear. -There are also applications such as the internet phone which enables
the user to talk with other people, this works almost like a conventional
telephone.
· New technologies and what to expect in the near future.
There have been many new breakthrou .....
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Production Planning
.... worker to carry out management's wishes
without question.
Many of today's method's of operation management have elements of the
above stated principles. For example, part of Material Requirement Planning
system (MRP) is learning how workers to hire, fire, or lay idle. This is
because it we realize the a worker can only produce so many widgets a day, can
work so many hours a day, and so many days a year.
I will disagree with principle “c” in that the worker should blindly
carry out the wishes of management. Successful operations are based upon a two-
way flow of thought and suggestions from management to labor. This two-way f .....
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Parts Of A Computer And What They Do
.... more ergonomically designed than there older counter parts
this is done in order to reduce R.S.I a problem that effects a lot of
typists
One of the most interesting keyboard is a device called a data hand
this will take a combination of hand movement and clicks and convert them
in to working commands.
Another type of keyboard is the virtual keyboard this removes the
physical keyboard and replaces it will a digital interpretation that the
user can interact with this is most popular with machines too small to use
a standard keyboard such as palmtop computers.
Mice
A mouse is a way of removing the clumsy .....
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Computer Scientist/Programmer
.... grouped into two
types. These two types are Applications programmers and Systems
programmers. Applications programmers usually are oriented towards
business, engineering, or science. They write software to handle specific
jobs within an organization such as a program used in a place of business
were a lot of inventory is being taken. They may also work alone to revise
existing packaged software. Systems programmers, on the other hand,
maintain and control the use of computer systems software. These workers
make changes in the program that determine how the network, workstations,
and central processing unit of the system hand .....
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Floating Point Coprocessors
.... One technique is to provide the coprocessor with an
instruction interpreter and program counter. Each instruction fetched from
memory is examined by both the MPU and the coprocessor. If it is a MPU
instruction, the MPU executes it; otherwise the coprocessor executes it. It can
be seen that this solution is feasible, but by no means simple, as it would be
difficult to keep the MPU and coprocessor in step. Another technique is to equip
the microprocessor with a special bus to communicate with the external
coprocessor. Whenever the microprocessor encounters an operation that requires
the intervention of the coprocessor, the spec .....
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Computer Communications: Bus Network
.... Its weakness, however, is that failure of the central
computer results in a shutdown of the entire network. And because each node is
individually wired to the hub, cabling costs can be high.Ring networkRing
Network, in computer science, a local area network in which devices (nodes) are
connected in a closed loop, or ring. Messages in a ring network pass in one
direction, from node to node. As a message travels around the ring, each node
examines the destination address attached to the message. If the address is the
same as the address assigned to the node, the node accepts the message;
otherwise, it regenerates the signal a .....
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Computer Programming
.... outlining exactly what the program
will do.
(2) Plan the sequence of computer operations, usually by developing a
flowchart (a diagram showing the order of computer actions and
data flow).
(3) Write the code--the program instructions encoded in a particular
programming language.
(4) Test the program.
(5) Debug the program (eliminate problems in program logic and correct
incorrect usage of the programming language).
(6) Submit the program for beta testing, in which users test the
program extensively under real-life conditions to see whether
it per .....
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Object-Oriented Database Management Systems
.... under development today share a set of
fundamental object-oriented concepts. Therefore the implementation issues
in OODBMSs that arise due to these concepts are universal. The third
characteristic is that of experimental activity. Plenty of prototypes have
been implemented and some of them became commercial products. There is
really a need for applications to handle very complex data and that is why
the interest of people in building such systems is so strong.
Although there is no consensus on what an OODBMS is and which are the
features that differentiate it from other systems, there has been a lot of
effort for an agreement on .....
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Computer Crime
.... to an authorized user of a computer system.
(e) Misuse of computer system information. A person is guilty of the computer
crime of misuse of computer system information when: (1) As a result of his
accessing or causing to be accessed a computer system, he intentionally makes or
causes to be made an unauthorized display, use, disclosure or copy, in any form,
of data residing in, communicated by or produced by a computer system.
Penalties for committing computer crime range from a class B misdemeanor to a
class B felony. The severity of the penalty is determined based on the monetary
value of the damages inflicted. (2)
The l .....
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Computer Crime: A Increasing Problem
.... mail are passed through the world's networks daily.
It is the age of the computer network, the largest of which is known as the
InterNet. A complex web of communications inter-linking millions of computers
together -- and this number is at least doubling every year. The computer was
originally designed as a scientific and mathematical tool, to aid in performing
intense and precise calculations. However, from the large, sixty square foot
ENIAC (Electronical Numerical Integrator and Calculator) of 1946, to the three
square foot IBM PC of today, their uses have mutated and expanded far beyond
this boundary. Their almost infinite .....
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