1.) One of the oldiest calculating machine was the abacus that’s about 5,000 years old.
2.) Mechanical Calculators were invented in the 1600s.
3.) The first person to invent a ancestorial computer was Charles Babbages it was on the 1800s and it did not work, it broke down.
4.) What allows us use the computer that 220 years ago wasn’t posible is the electronic components (non moving parts).
5.) The Stone Henge was used for a gaint astonomical calculater.
6.) The four parts of a computer are the output, input, storage and processing.
History of Computers *Lesson 2*
1. The physical parts of a computer are called hardware.
2. Input is processed by the computer by the microprocessor, that reads the input and accept it in order to put the information in your computer.
3. A microprocessor is in charge of making the computer do the tasks we ask it to do.
4. The four components of a computer are: input, processing, storage, and output.
5. The activity is about clicking in some hardware parts of the computer and finding out which of the four components is it.
History of Computers *Lesson 3*
1. Information processing is being able to change and access information like numbers, texts, ect…
2. Information like numbers, pictures, texts, music or webpages.
3. Input devices are used to put information in your computer.
4. Screen, keyborad, microphone, mouse, scanner ect…
5. Data had to be entered by fliping switches and plugging wires.
6. The electronic numerical indicator and calculator.
History of Computers *Lesson 4*
1. Computers store temporary information and long-term information.
2. Random Access Memory (RAM)3. Read Only Memory (ROM)
4. Is RAM stored once the computer is shut off?
5. No, it gets erased.
6. Hard drives, CD-ROM’s and Floppy Disk drives.
7. Of rigid aluminum or glass disks coated with ferromagnetic material and rotate around a central axle
8. From 650 to 680 megabytes.
9. Because the disk is flexible and the read and write head is in physical contact with the surface of the disk. 1
10. Done it.
11. Floppy disk – 337 Pages CD – 150.000 Pages DVD – 3.984.000 Pages Hard drive – 18.750.000 Pages
History of Computers *Lesson 5*
1. All data and instructions pass through integrated circuits, the most complez one is the microprocessor.
2. In the 1970’s
3. 1971.
4. Embedded processors are used in DVD and remote controls. This processors are much less versatiles than microprocessors.
5. With a microprocessors you can so many things at the same time, it can handle more than one task at a time.
History of Computers *Lesson 6*
1. An output is information that is displayed to the user in some discernible form such as a screen display, printed page, or sound. Ex: Word document, Picture, song…
2. A microprocessor handles the fetch, decode and execute steps of the computer.
3. The diference between downloas and upload is that download is to transfer files or data from one computer to another. To download means to receive; to upload means to transmit.
History of Computers *Lesson 7*
