Computer Science and Binary Code
Fill in the spaces: A bit can be either _ or _.
A bit can be either 0 or 1.
What are the two components that compose a computer?
Hardware and Software
Can you give two examples of an operating system?
Examples: Windows, Linux, Mac.
Is a webcam an input or an output device?
Input
Name one input device and one output device.
Input: Webcam Barcode Reader Joystick Keyboard Mouse
Output: Headphones Speakers Projector Printer
Complete the scentence: A _ _ _ is the smallest unit used to represent information on a computer.
A bit is the smallest unit used to represent information on a computer.
Name what is being described here:
It is a chip that works as the computer's brain. It interprets instructions from programs, processes data, manages and controls the entire system.
CPU
Can you name two types of software applications?
Word processors, spreadsheets, presentations, database programs, tools for processing graphics.
Name the third type of optical device:
DVD, CD-ROM and ...
Blue - Ray Disc
What type of programme is being described here?
These programs make use of peripheral devices such as microphones, speakers or cameras to process text, images, sound, animation and video.
M _ _ _ _ _ _ _ _ _
Can you give a definition of "computer science"?
It is the science that studies how to solve problems using "algorithms" through implementing them (programming) in machines called computers.
Name another word for the CPU.
Microprocesser.
Name what is being described:
They consist on cells arranged in rows and columns, where we enter the data and perform calculations.
Spreadsheets
Modem, Digital Cameras, Tablets, PDA, Smartphones
Are the above devices:
a) Input Devices
b) Output Devices
c) Input/Output Devices
Input/Output Devices
Is ROM memory erased when we turn off the computer?
No, it is not erased even when we turn off the computer.
In ASCII code, each letter or symbol is encoded by a group of how many BITS?
A group of 8 BITS.
What does ROM and RAM stand for?
"Read Only Memory" and "Random Access Memory."
Can you give three examples of a peripheral device?
Microphones, speakers or cameras.
Can you fill in the spaces and name these three types of storage devices?
1. M _ _ _ _ t _ c
2. _ p t _ c _ l
3. S _ l _ d - S _ a _ e
Is RAM memory erased when we turn off the computer? Can its content be changed?
Yes, RAM memory is erased when we turn off the computer.
Yes, its content can be changed.
What do the following symbols represent?
B, KB, MB, GB, TB
Byte, Kilobyte, Megabyte, Gigabyte, Terabyte
What are peripheral devices?
They are used to communicate what is inside to the computer to the outside world. They are conected to ports found on the computer's case. To install them, you only have to connect them to a port (plug-and-play technology). You can use wires to connect them or the devices can also be wireless.
What software application is being described here?
They enable us to write and format texts. You can also personalize documents by changing their format (size and thickness of the letters, colour, margins...). Microsoft Word, OpenOffice Writer, Pages...
Word Processors
What type of storage device is a memory card?
Solid - State
Where is the CPU found?
In the motherboard.