1. What is an input device? Writte down which input devices you know and post an image of each one.

An input device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system (such as a computer).

Examples of input devices: Keyboards

2.What is an output device? Writte down which output devices you know and post and image of each one.

An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) to the outside world.

Examples of output devices: Speakers Printer headphone

3. What is the difference between RAM and ROM?

The abbreviation RAM may refer to:
Random access memory, computer memory that can be read from and written to in arbitrary sequence

Read-Only Memory, a class of storage media used in computers and other electronic devices. This tells the computer how to load the operating system.

4. What is a backing storage? Which types of backing storage do you know?

Computer data storage, often called storage or memory, refers to computer components, devices, and recording media that retain digital data used for computing for some interval of time.

EXEMPLES:

Hard drives
CD, DVD, and Blu-Ray drives
Floppy drives
Zip drives
USB Flash drives
CompactFlash cards
SD cards
Tape drives

DATA

1. What is data?

Data is information that has no meaning.

2. Explain the difference between data and information.

Information = Data + Meaning

3. How many bits are in a byte? and in a gigabyte? and in a kilobyte or KB? Serch the net for a image of: 25KB.

8 Bites are 1 Byte.

In a gigabyte there are 1073.741.824 bytes.

In a kilobyte there are 1024 bytes.

4. What do the letters LAN and WAN stand for?

LAN (Local Area Networks) are the networks that you see in most offices an schools.

WAN is the short for Wide area Network. They are used when the computers that need to be connected thogether are in different places.

5. Search the internet and look for images that explains what is:

A star network

A line network

A ring network