Computer once meant a person who did computations, but now the term almost universally refers to automated electronic machinery. The first section of this article focuses on modern digital electronic computers and their design, and applications. Computer Information. Everything you do on your computer will rely on both hardware and software. Computer Information.
As you learn about different types of computers, ask yourself about the differences in their hardware. As you progress through this tutorial, you’ll see that different types of computers also often use different types of software.
The first Computers were used primarily for numerical calculations. Their speed has allowed them to make decisions about routing telephone connections through a network and t control mechanical systems such as automobiles, nuclear reactors, and robotic surgical tools. Computer Information.
Being a modern-day kid you must have used, seen, or read about computers. This is because they are an integral part of our everyday existence. Be it schools, banks, shops, railway stations, hospitals, shops, offices or your own home, computers are present everywhere, making our work easier and faster for us. Computer pieces of information.
Analog computers can have a very wide range of complexity. Systems for process control and protective relays used analog computation to perform control and protective functions.
Analog computers use continuous physical magnitudes o represent quantitative information. At first, they represented quantities with mechanical components (see differential analyzer and integrator), but after World war II voltages were used; by the 1960s digital computers had largely replaced them. Nonetheless, analog computers, and some hybrid digital-analog systems, continued in use through the 1960s in tasks such as aircraft and spaceflight simulation.
Digitas computer is a machine or a device that helps o process any kind of information. These are the devices through which we provide some input and ger the output within a fraction of seconds. Computer pieces of information.
Some of the basics examples of digital devices are personas computers, Desktops, Laptops, Smartphones, and Mobiles.
In contrast to analog computers, digital computers represent information in discrete form, generally as sequences of 0s and 1s 9binary digits, orbits). The modern era of digital computers began in the late 1930s and early 1940s in the United States, Britain, and Germany. Compuer pieces of information.
In 1959 the IBM 1401 Computer rented for $8,000 per month (early IBM machines were almost always leased rather than sold), and 1964 the largest IBM s/360 computer cos several million dollars.
The term originally referred o the large cabinets called ”mainframes” that housed the central processing unit and main memory of early computers. Supercomputer
They have historically been very expensive and their use limited o high-priority computations for government-sponsored research, such as nuclear simulations and weather modeling. today many of the computational techniques of early supercomputers are in common use in pcs.
A supercomputer is a computer that performs at or near the currently highest operational rate for computers.
Minicomputer Compuer Information
Relatively small and inexpensive, minicomputers were typically used in a single department of an organization and often dedicated to one task or shared by a small group. minicomputers generally have limited computational power, but they had excellent compatibility with various laboratory and industrial devices for collecting and inputting data.
After the introduction of minicomputers, microcomputers also became very popular. Microchips vegan to ve used in microcomputers instead of many different components of minicomputers.
Whereas the early minicomputers replaced vacuum tubes with discrete transistors, microcomputers (and later minicomputers as well) used microprocessors that integrated thousands or millions of transistors on a single chip. Embedded Processors
Another class of computers is the embedded processor. These are small computers that use simple microprocessors to control electrical and mechanical functions.
There are literally hundreds of embedded processors available and not one of hem currently dominates embedded system designs.
Central processing unit
The central processing unit or processor is the unit that performs most of the processing inside a computer.
Secondary memory on a computer is stored for data and programs not in use at the moment.