This trimester, my schedule is very comfortable, I am satisfied with my time management and my first lecture of Computer & Internet is on Wednesday at 8:00am to 10:00am. This is the best time to study, because I am very energetic and enthusiastic to study, because I just had my breakfast, I had my shower and so on... Moreover, our lecturer is funny, I mean his lectures are not boring, that is why I appreciate it.
During that class, we also learned about the Computer Generation History. I learned about the Evolution of Computers. There are five generations:
Vacuum Tube (First Generation 1940-1950)
- UNIVAC [1950].
- ENIAC [1945].
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| cheerfulness and power in the morning |
So, on Wednesday of 6th February, I came to class on time, and I was ready to study.
In that lecture, we began our topic from: "Who invented the computer?"
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| "Who invented the computer?" |
And our lecturer said that there are a lot of variants and until today I don't know who exactly created and invented the computer.
* Charles Babbage, 1791-1871
* John von Neumann, 1903-1957
* Blaise Pascal, 1623-1662
EVOLUTION OF COMPUTERS.
During that class, we also learned about the Computer Generation History. I learned about the Evolution of Computers. There are five generations:
Vacuum Tube (First Generation 1940-1950)
- UNIVAC [1950].
- ENIAC [1945].
Transistors (Second Generation, 1950-1964)
- IBM1401 mainframe.
- IBM1401 mainframe.
Integrated Circuits "IC" (Third Generation , 1964-1974)
- Microprocessor chips combines thousands of transistors, entire circuit on one computer chip.
VLSI / ULSI Forth generation (1974-present)
- VLSI = Very Large-Scale Integration.
- ULSI = Ultra Large Scale Integration.
Artificial Intelligent Computers (now and future)
- Based on artificial intelligence - computers can think, reason and learn.
VLSI / ULSI Forth generation (1974-present)
- VLSI = Very Large-Scale Integration.
- ULSI = Ultra Large Scale Integration.
Artificial Intelligent Computers (now and future)
- Based on artificial intelligence - computers can think, reason and learn.
- Nanotechnology.
COMPUTER ARCHITECTURE
We also learned about computer architecture. It is the field of study of selecting and interconnecting hardware components to create computers that satisfy functional performance and cost goals.
In Computer Architecture there are 5 basic components:
- Input
- Output
- Memory
- Control
- Data Path
COMPUTER CATEGORIES
Later on, we also learned about the categories of computer, there are six Categories of Computer:
- Embedded Computers (Mini computers embedded into a specific product for specific function)
- Mobile devices/computers (Small computer that fits on your hand, contain built-in computing or Internet capabilities)
- Personal Computers (Fully functioning portable or desktop computers)
- Mid-range Servers (Physically likes small cabinet, hosting data and programs available to a small group of users)
- Mainframes (is a large, expensive, very powerful computers that can handle thousands of connected users)
- Supercomputers (The fastest, most powerful, and most expensive category of computers)
COMPUTER PROCESSING POWER
The main important thing that I understood that if we compare the computers there is a big difference between their powers.
For example, speed of the computer is measured in hertz (Hz) i.e. cycles per second.
Capacity is measured in bytes (B) where
1 byte = 8 bits (binary digits) = 1 character.
Hard disk capacity (MB- megabytes, GB – gigabytes)
Moreover, the display on computer is also divided in qualities. It given by the numbers of pixels (picture elements).