Second Week Reflextion !!!!!!!!!!!

Today I am going to write down about my second week reflection, in second week we learn about the computer history, computer architecture,size,processing power,& types of computers.

The history of computer: Many inventors contributed to the history of computers and that a computer is a complex piece of machinery made up of many parts, each of which can be considered a separate invention.

This series covers many of the major milestones in computer history (but not all of them) with a concentration on the history of personal home computers.

There are different kinds of computer. First I want to mention about the

Pre computers/early computers:Those computer was made before 1940s they are known as pre or early computers.

First generation computer: Those computers are made in the 1940- 1950 they are knows as first generation computer.This computers had electron emitting devices.this computers also have machine language etc.

Second generation computer: The computers from 1950 to 1964 are called second generation computer, this computers have first operating system, on-off switches etc.

Third generation computer(1964-1974):Third generation computer had microprocessor chips, semiconductor memory, multiple computer models.

Fourth generation computer (1974-present): This computers have VLSI or ULSI.

Fifth generation computer: Those computer are using now and will be using in future is known as fifth generation computer.

Then we learn about computer architecture; computer architecture is a field of study of selecting and interconnecting hardware components to create computers that satisfy performance. It has processor, memory, input-output & Alu. We also learn about the types of computer, there are six types of computer;

      Embedded computer, mobile computer, personal computer, midrange computer, mainframe computer, & supercomputers. 

In session two we learn about computer hardware basics,mother board, CPU,main memory.

Computer hardware means those things we can see, we can touch etc.

 Motherboard is one of the most important features of the computer and different types of circuits can be found in the motherboard.

Processor:The processor is the most important part of the computer.

Memory:In computing, memory refers to the physical devices used to store programs (sequences of instructions) or data (e.g. program state information) on a temporary or permanent basis for use in a computer or other digital electronic device. 

There are two types of memory Ram & Rom.