peopleware, hardware and software.. plus computer types part 3

Then if we have the peopleware and hardware, there will also be the software. Software is define as the program that we uses in a computer. 

We have two types of software. The system software and the application software.

System Software is the one that is responsible for operating a computer hardware. Application software is useless without the system software.

There are three categories of system software. System Control Program, System Support Program and System Development Program. They are somehow self explanatory.

First, System Control Program from the word itself, it is the one that controls the  use of hardware, software and data resources of a computer. Operating System is an example of it.

Then System Support Program is the one that supports the operations, management, and user's of a computer system. An example of it is the Antivirus. 

Lastly is the System Development Program. It helps users to develop information processing programs.

After the system software, we proceeded to the Application Software. Application software is define as any program we used on a computer, whether it is a game, a Microsoft office, a notepad, paint, Mozilla Firefox, Google Chrome and so many to mention. 

I also encountered the types of computers. I am really lucky because somehow it is only a recall for me.

The first type of computer are the supercomputers. They are somehow expensive for they are made for a specific function. They are used for scientific and military work. They are also the fastest computer.

    Next is the mainframe computer. It is not as expensive as the supercomputers. They are commonly used by the large corporations. It allows the information to be shared to other computers within the corporation. 

Minicomputers are also know as the midrange computers. They are cheaper than the mainframe computers.

Next are the microcomputers. Also know as the personal computers. These are commonly found in our own houses. These are used by one person at a time. 

Lastly would be the mobile devices. 

peopleware, hardware and software.. plus computer types part 2

Next are the Input Devices which inputs data inside the computer. 

Peripheral input devices examples are:

  *keyboard

*computer camera/ web cam

  *computer mouse

 *computer microphone

  * bar code reader

If there are input devices, there would also be the output devices. These devices are the opposite of the input devices. If the input devices inputs data, then the output devices would be the one that gives us the hard copy of a data or the one that  displays the data.

Some examples of these are:

 *monitor

  *printer

  *speaker

We also have the secondary storage. It is also know as the external storage. It allows the data or programs to be stored for future use. 

Few examples of it are:

  *magnetic tape

 *flash drive

  * floppy disk

  *memory cards

  * compact disk

And lastly are the communication devices. These devices provides the flow of data.  

peopleware, hardware and software.. plus computer types part 1

Peopleware are used to describe us, because peopleware is define as anyone who uses computer.


Then we have the hardware.

I must say that I have the advantage for this topic, for I already took up this lesson back then to "Introduction to Information Technology". 


With these session, I have learned the solid parts of a computer, which are divided into six categories. These are named as the central processing unit, primary storage,input devices, output devices, secondary storage and lastly the communication devices.

The Central Processing Unit is commonly mistaken as the system unit. But in fact, it is not the large metal case on a computer  set but rather a chip. It is the "brain" of a computer. Without it, there will be no computer, for it is the one that controls and process the task of a computer.
Also known as the microprocessor.

Central Processing Unit is consist of control unit, the arithmetic-logic and the primary storage.

Control Unit reads, interprets, and carries instructions. It does not change nor create a new data but rather directs it to the other components of the computer system. It also controls the input and output devices. It may only process one instruction at a time but it can execute instructions quickly(millions per second).

Arithmetic-Logic Unit, performs arithmetic and logic operations.

We also have the primary storage. It is also known as the internal storage, under the CPU. It temporarily stores the data on a computer. Examples of it are:

1. Registers 

2. Random Access Memory (RAM)

3. Read Only Memory (ROM) 

4. Cache Memory 

5. Flash Memory 

information technology fundamentals, management and maintenance ..

information technology fundamentals, management, and maintenance.. 

It is a major subject, that we, as an information technology students must study. 

"primary, original, pertaining to a foundation" , 

- a definition you would get when you started to search for the meaning of FUNDAMENTALS alone..

Meaning, as an information technology students, we are oblige to study the foundation of our own chosen course. 

Indeed, we studied first the history of our "future best friends", the computers.

But before anything else, a computer is not just an electronic device, it is at first said to be a word used to describe a job title. A job in which a human is

capable of calculating the navigational tables, tide charts, and planetary positions for astronomical almanacs.

As for its history, we met different persons who were responsible for the development of computer. 

It started from the Chinese who made the abacus. 

Abacus helps people to make the calculations easier. 

After the abacus, punched cards was introduced by a Frenchman whose name was Joseph Marie Jacquard.

Then we were able to met our so called "great grandfather" Charles Babbage. 

He was the one who was responsible for the creation of the Difference Engine, which became the key for the discovery of the Analytical Machine. Analytical machine then became the foundation for the creation of our modern CPU.

Then came Ada Byron or Countess Lady Lovelace. She was the first one who recognized the importance of looping.

Also, in the nineteenth century, a company was developed and established. It is called the Tabulating Machine Company, which we now known as the IBM or International Business Machines. 

IBM then shared a partnership with the Harvard, and the result was Mark 1. 

One of Mark 1's programmer was Grace Hopper, she was the one who invented the word bug/debugging. This word was created when Grace Hopper found a bug inside Mark 1, and that bug was seemed to be blocking the reading of the holes in the paper tape. From there, she described the defect as the bug, then the word debugging took place. It is an act of removing the bug also known as the defect.

Aside from coining the words debug and debugging, she was also the one who was responsible for the creation of the Common Business Oriented Language also known as COBOL. 

After discussing the history, we also learned the Components of a Computer System, namely Peopleware,Hardware and Software.