About Computers
A computer is a programmable electronic device that accepts raw data as input and
processes it with a set of instructions (a program) to produce the result as output. It
renders output just after performing mathematical and logical operations and can
save the output for future use. It can process numerical as well as non-numerical
calculations. The term "computer" is derived from the Latin word "computare"
which means to calculate.
A computer is designed to execute applications and provides a variety of solutions
through integrated hardware and software components.
It works with the help of
programs and represents the decimal numbers through a string of binary digits. It
also has a memory that stores the data, programs, and result of processing. The
components of a computer such as
machinery that includes wires, transistors,
circuits, hard disk are called hardware. Whereas, the programs and data are called
software.
It is believed that the Analytical Engine was the first computer which was invented
by Charles Babbage in 1837. It used punch cards as read-only memory. Charles
Babbage is also known as the father of the computer.
1. Micro Computer:
It is a single-user computer which has less speed and
storage capacity than the
other types. It uses a microprocessor as a CPU. The first microcomputer was built
with 8-bit microprocessor chips. The common examples of microcomputers
include laptops, desktop computers, personal digital assistant (PDA), tablets, and
smartphones. Microcomputers are generally designed
and developed for general
usage like browsing, searching for information, internet, MS Office, social media,
etc.
2. Mini Computer:
Mini-computers are also known as "Midrange Computers." They are not designed
for a single. They are multi-user computers designed to support multiple users
simultaneously. So, they are generally used by small businesses and firms.
Individual departments of a company use these computers for specific purposes.
For example, the admission department of a University can use a Mini-computer
for monitoring the admission process.
Mass Media
Think about this for a second: whenever you want
to hear your favorite song,
watch your favorite show, or see the latest current events, where do you go? You
more than likely turn on your television, radio, or computer. The source that the
majority of the general public uses to get their news
and information from is
considered mass media.
Mass media
means technology that is intended to reach a mass audience. It is the
primary means of communication used to reach the vast majority of the general
public. The most common platforms for mass media are newspapers,
magazines,
radio, television, and the Internet. The general public typically relies on the mass
media to provide information regarding political issues, social issues,
entertainment, and news in pop culture.