Friday, 21 June 2013 | 19:17 | 0 Words
Assalammualaikum :) Lets move on with a new topic! This week,our lecturer taught us topic about ...
Computer
Hardware Basics :
Computer
History, Computer Architecture, Size, Processing Power & Types of Computers
In this week,we learnt about the first generation computer until fifth
generation.Is is so interesting topic because while we using this technology,we
didn’t even know about how its look like for the first computer.So,in this topic
we learnt it and knows about it.So,lets learnt about the first generation
computer.
1)
First Generation
(1940-1950) :: Vacuum Tube
-ENIAC [1945]:
Designed by Mauchly & Echert, built by US army to calculate trajectories
for ballistic shells during Worls War II. Around 18000 vacuum tubes and 1500
relays were used to build ENIAC, and it was programmed by manually setting
switches
-UNIVAC [1950]: the first commercial
computer
2)
Second
Generation (1950-1964) :: Transistors
-William Shockley, John Bardeen,
and Walter Brattain invent the transistor that reduce size of computers and
improve reliability. Vacuum tubes have been replaced by transistors
3)
Third Generation
(1964-1974) :: Integrated Circuits (IC)
-Microprocessor chips combines thousands of transistors,
entire circuit on one computer chip.
-Semiconductor
memory
4)
Fourth
Generation (1974-Present)
-Combines millions of
transistor
-Single-chip processor and the single-board computer emerged
-Creation of the Personal
Computer (PC)
5)
Fifth Generation
(now and the future
-Based
on artificial intelligence - computers can think and learn
-Primary
means of input – voice and touch
I
have learnt also about many different types of computers.Ok,lets learnt
about types of computers.
I.
Embedded computers(A
miniature computer embedded into a specific product for a specific function
II.
Mobile devices/ computers (Fits on our lap/ hand, contain built-in computing
or Internet capabilities)
III.
Personal computers(Fully
functioning portable or desktop computers, designed for a single user at a time)
IV.
Midrange servers(Physically
likes small cabinet, hosting data and programs available to a small group of
users)
V.
Mainframes(Consume
large space and powerful computers used to host a large amount of data and
programs available to a wide range of users)
VI.
Supercomputers(Extremely
powerful computers used for complex computation and processing)
Other than that,we also learnt qbout Motherboard.Motherboard is a main
circuit board in system unit.Its contain intergrated circuit,transistors and
chips.It also called as system board.Moreover,our lecturer taught us about
Input,Input devices,Output,Output devices.
