The Use of Computers in Education
The typical school has 1 computer per 20 students, a ratio that computer educators feel
is still not high enough to affect classroom learning as much as books and classroom
conversation.
Some critics see computer education as merely the latest in a series of unsuccessful
attempts to revolutionise education through the use of audio- and visually-oriented non
print media. For example, motion pictures, broadcast television, filmstrips, audio
recorders, and videotapes were all initially heralded for their instructional potential,
but each of these ultimately became minor classroom tools alongside conventional
methods.
Communications Satellite
A communications satellite is an artificial SATELLITE placed into orbit around the Earth
to facilitate communications on Earth. Most long-distance radio communication across land
is sent via MICROWAVE relay towers. In effect, a satellite serves as a tall microwave
tower to permit direct transmission between stations, but it can interconnect any number
of stations that are included within the antenna beams of the satellite rather than
simply the two ends of the microwave link.
Computer Crime
Computer crime is defined as any crime involving a computer accomplished through the use
or knowledge of computer technology. Computers are objects of crime when they or their
contents are damaged, as when terrorists attack computer centres with explosives or
gasoline, or when a "computer virus" a program capable of altering or erasing computer
memory is introduced into a computer system.
Personal Computer
A personal computer is a computer that is based on a microprocessor, a small
semiconductor chip that performs the operations of a c.p.u.
Personal computers are single-user machines, whereas larger computers generally have
multiple users. Personal computers have many uses such as: Word processing,
communicating to other computers over a phone line using a modem,databases,leisure games
are just some of the uses of a Personal Computer.
Computers for Leisure Games
As they proliferated, video games gained colour and complexity and adopted the basic
theme that most of them still exhibit: the violent annihilation of an enemy by means of
one's skill at moving a lever or pushing a button.
Many of the games played on home computers are more or less identical with those in video
arcades. Increasingly, however, computer games are becoming more sophisticated, more
difficult, and no longer dependent on elapsed time a few computer games go on for many
hours. Graphics have improved to the point where they almost resemble movies rather than
rough, jagged video screens of past games. Some of the newest arcade games generate
their graphics through C.D R.O.M. Many include complicated sounds, some even have music
and real actors. Given an imaginative programmer, a sophisticated video game has the
potential for offering an almost limitless array of exotic worlds and fantastic
situations.
In the early 90s parents and government were becoming increasingly aware of violence in
video games so they introduced warnings on the box like in the movies.
|