This presentation provides a summary of the history and progression of computer architecture from the 1940s to present day. It begins with early mechanical computing devices like the abacus. Important early electronic computers are discussed such as the ENIAC from 1946, the EDSAC from 1949, and the UNIVAC I from 1951. The presentation then outlines the progression of technology from vacuum tubes to transistors to integrated circuits to microprocessors. Examples of important CPU architectures like the Intel Pentium are presented. Components of modern computer systems like motherboards, memory, ports, and chipsets are briefly described.

1. Md. Shamim Hossain
ID: 153015013
Sub: Computer Architecture
Dept: CSE
Green university of Bangladesh
Welcome To My Presentatio

2. Presentation
Topics
•Computer Architecture History

3. HISTORY!!!
One of the first computing devices to come about was . .
The ABACUS!

4. • Completed:1946
• Programmed: plug board and switches
• Speed:5,000 operations per second
• Input/output: cards, lights, switches, plugs
• Floor space:1,000 square feet
The ENIAC : 1946

5. The EDSAC(1949)
• EDSAC
• Technology: vacuum tubes

6. The UNIVAC I(1951)
• Speed:1,905 operations per second
• Input/output: magnetic tape, printer
• Memory size:1,000 12-digit words in delay
lines
• Memory type: delay Memory:1K words
First practical stored-program computer
• Technology: serial vacuum tubes, delay
lines, magnetic tape
• Floor space:943 cubic feet
• Cost: F.O.B. factory $750,000+

7. Progression of The Architecture
• Vacuum tubes -- 1940 – 1950
• Transistors -- 1950 – 1964
• Integrated circuits -- 1964 – 1971
• Microprocessor chips -- 1971 – present

8. Current CPU Architecture

9. Intel Pentium 1 Chip with MMX

10. Motherboards / Chipsets / Sockets
•Chipset
In charge of:
•Memory Controller
•EIDE Controller
•PCI Bridge
•Real Time Clock
•DMA Controller
•IRDA Controller
•Keyboard
•Mouse
•Secondary Cache
•Low-Power CMOS SRAM

11. Intel DX4 – 100 MHz processor
& Motherboard

12. Pentium 4 Architecture

13. Main Memory

14. Read Operation
•On a read the CPU will first try to find the data in the
cache, if it is not there the cache will get updated
from the main memory and then return the data to
the CPU.

15. Serial Port
• Uses DB9 or DB25
connector
• Adheres to RS-232c spec
• Capable of speeds up to
115kb/sec

16. USB
• 1.0
• hot plug-and-play
• Full speed USB devices signal at 12Mb/s
• Low speed devices use a 1.5Mb/s sub channel.
• Up to 127 devices chained together
• 2.0
• data rate of 480 mega bits per second

17. PS/2 Port
• Mini Din Plug with 6 pins
• Mouse port and keyboard port
• Developed by IBM

18. Parallel port i.e. “printer port”
• Old type
• Two “new” types
• ECP (extended capabilities port)
and EPP (enhanced parallel port)
• Ten times faster than old parallel port
• Capable of bi-directional
communication.

19. Game Port
• Uses a db15 port
• Used for joystick connection to the computer

20. THANKS

21. Any Question????