What is a computer?
                     What is a computer?
A computer is a device that stores information and 
processes data. Computers were invented in 1946 
at MIT (Massachusetts Institute of Technology) 
by John Atanasoff and Clifford Berry.
History of the computer
The  ENIIAC  was  tthe  ffiirstt  diigiittall  computter  and  whatt  mostt  peoplle  tthiink  off  as  a  computter..  IItt  was  buiilltt  
duriing  Worlld  War  IIII  (1943-1946)  tto  hellp  auttomatte  tthe  callcullattiions  perfformed  by  human  computters..  
They  coulld  achiieve  much  ffastter  and  more  accuratte  resulltts  by  perfformiing  tthese  callcullattiions  on  a  
computter..
Hardware vs. Software
Hardware includes the physical Software is the set of instructions 
components of a computer such that tell how to use the hardware 
as processors, memory chips, such as web browsers, games, 
hard drives, etc. and word processors..
What are the different types of computers?
Most people associate the term "computer" with a personal computer such as 
a desktop or laptop. Computers, on the other hand, come in a variety of 
shapes and sizes and serve a variety of functions in our daily lives. When you 
use an ATM, scan groceries at the store, or use a calculator, you are using a 
type of computer.
Desktop computers
Desktop computers are used by many 
people at work, home, and school. Desktop 
computers are intended to be placed on a 
desk and typically consist of several 
components, including the computer case, 
monitor, keyboard, and mouse.
Laptop computers
A laptop computer, also known as a laptop, 
is the second type of computer you may be 
familiar with. Laptop computers are battery-
powered computers that are more portable 
than desktop computers and can be used 
almost anywhere.
Tablet computers
Tablet computers, also known as tablets, are 
handheld computers that are even more 
portable than laptops. Tablets, rather than a 
keyboard and mouse, use a touch-sensitive 
screen for typing and navigation. 
Servers
A server is a computer that distributes data 
to other computers on a network. for 
example, you are looking at something on 
the Internet that is stored on a server. Local 
file servers are also used by many 
businesses to store and share files 
internally.
Other Computer 
Types
Many of today's electronics are essentially specialized 
computers, even if we don't always recognize them. Here are 
a few typical examples.
Smartphones: Many cell phones can perform 
many of the same functions as computers, such as 
browsing the Internet and playing games.
Wearable technology refers to a group of devices, 
such as fitness trackers and smartwatches, that are 
designed to be worn throughout the day. 
Game consoles: A game console is a type of 
computer that is used to play video games on 
your television.
TVs: Many TVs now include apps that allow 
you to access various types of online 
content.
What components 
are required for a 
computer to 
function?
All of the above-mentioned 
components are not required for 
a computer. However, a 
computer cannot function without 
at least the following 
components.
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