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Sunday, March 26, 2023

What is the Computer and computer devices ?

What is the Computer and computer devices ? 

Key Content:
Computer Defination
Processing Power
Input Devices

A computer is a machine that is designed to perform various tasks, such as processing data, running programs, and connecting to the internet. At its most basic level, a computer consists of two main components: hardware and software.

Hardware refers to the physical components of a computer, such as the central processing unit (CPU), memory (RAM), storage (hard drive or solid-state drive), input/output devices (keyboard, mouse, monitor), and various other peripherals. These components work together to execute instructions and perform calculations.

Software, on the other hand, is a set of instructions that tells the computer what to do. There are two main types of software: system software and application software. System software includes the operating system (OS), which manages the computer's resources and provides a platform for applications to run on. Application software includes programs that perform specific tasks, such as word processing, web browsing, and gaming.

Computers have come a long way since their inception in the mid-20th century. The first computers were huge machines that filled entire rooms and were used primarily for scientific calculations. They were slow, expensive, and difficult to use.

However, over time, computers became smaller, faster, and more affordable. The development of the microprocessor in the 1970s revolutionized the computer industry by allowing computers to be built on a single chip. This led to the development of personal computers (PCs), which became popular in the 1980s and 1990s.

In the year 2000, computers had become an integral part of everyday life. They were used for a wide range of tasks, including communication, entertainment, education, and business. Here are some of the key features of computers in the year 2000:

Processing power:

In the year 2000, the fastest computers were capable of performing several billion calculations per second. This was a significant improvement over the early computers of the 1950s and 1960s, which were measured in instructions per second (IPS). The CPUs of the year 2000 had multiple cores, which allowed them to perform multiple tasks simultaneously.


The amount of memory available in computers in the year 2000 varied widely. Entry-level PCs typically had 64MB or 128MB of RAM, while high-end models could have up to 1GB. Compared to today's computers, these amounts of RAM were relatively small. However, they were sufficient for most applications of the time.


In the year 2000, hard drives were the primary form of storage for personal computers. Entry-level models typically had 10GB or 20GB of storage, while high-end models could have up to 80GB or 100GB. These hard drives were much slower than the solid-state drives (SSDs) of today, but they were much cheaper.


In the year 2000, most computer monitors were CRTs (cathode ray tubes). These were bulky and heavy, but they provided excellent color reproduction and high refresh rates. The most common resolutions were 800x600 and 1024x768. Flat-panel displays (LCDs) were also available, but they were expensive and had limited viewing angles.

Input devices:

The most common input devices in the year 2000 were keyboards and mice. Many computers also had CD-ROM drives, which were used for installing software and playing music CDs. Some high-end models also had DVD-ROM drives, which were used for playing movies.


In the year 2000, most computers were connected to the internet via dial-up modems. These modems had a maximum speed of 56Kbps, which was slow by today's standards. However, it was sufficient for browsing the web and sending email. High-end models also had computer in 2000.

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