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WorksheetsDigital Representation(TE4-7DI )
Total questions: 65
Worksheet time: 1hrs 8mins
Q: How is data represented inside a computer?
A: Data is (a) using (b) which (c) and (d)
Q: What is a bit?
A: (a) is the (b) in (c) and can be (d)
Q: What is a byte?
A: A byte is (a) and is often (b) a (c) like a (d)
Q: How are numbers stored in digital systems?
A: Numbers are (a) as (b) using (c) of (d)
Q: How are images represented in computers?
A: (a) are (b) with (c) having a (d) for its (e)
Q: What is a network?
A: (a) is a system (b) and (c) are (d) so they (e)
Q: How is data transmitted in networks?
A: Data (a) as small units (b) which travel in (c) across (d)
Q: What is the difference between wired and wireless transmission?
A: (a) transmission uses (b) (like Ethernet), while (c) transmission uses (d) (like (e) ).
Q: What is the role of a protocol in data transmission?
A: (a) is a (b) that makes (c) , received, and (d)
Q: Why is error checking important in networks?
A: (a) ensures the (b) is (c) and has (d) or damaged (e)
How is data represented inside a computer?
What is the smallest unit of data in a computer?
Byte
Pixel
Bit
Kilobit
How many bits are in one byte?
How are numbers stored in computers?
Using binary digits (0s and 1s)
How are images represented in computers?
By pixels with binary codes for colours
What is a computer network?
A system where devices are connected to share data
A group of files on a computer
What are packets in data transmission?
Small units of data sent across a network
What is the main difference between wired and wireless transmission?
What is a protocol in networking?
Why is error checking important in networks?
To ensure data is received correctly
How many bytes is there in the name "TED"
How many bits is there in the name "TED"
Organise these options into the right storage type categories.
Data is represented by using only 0s and 1s.
The smallest unit of data that a computer can store.
Consists of 8 bits.
Computer uses On and OFF states to represent data.
8 of these makes up a Byte
Each keyboard characters are represented by one ...
How images are stored in a computer.
Each of these having a binary number for its colour.
Organise these options into the Network catergories
Messages are broken into ... for transmission.
Small units of data sent across a network.
Transmit data using cables
They are more secure than wireless transmission.
Transmit data over the Internet without cables.
Transmission has a limited range.(black spots)
To ensure data is transmitted sucessfully.
A set of rules that controls transmission.
Which of the following best describes a byte?
A group of 16 bits
A single binary digit
A group of 8 bits
A group of 4 bits
What is the binary representation of the decimal number 5?
0101
1001
1010
1100
Which unit is larger: kilobyte or megabyte?
Bit
They are equal
Megabyte
Kilobyte
Which of the following is NOT a networking protocol?
Ethernet
HTTP
TCP/IP
Microsoft Word
How many bytes are there in the word "DATA"?
6 bytes
8 bytes
2 bytes
4 bytes
What is the binary representation of the decimal number 7?
0101
1110
1000
0111
Organise these options into the right Media types
Stored using binary codes such as ASCII or Unicode.
Each letter, number or symbol has a binary value.
Made up of small dots called pixels.
Each pixel is given a binary code for its colour.
Sound waves are changed into binary numbers through sampling.
Higher sampling gives better quality.
A series of image frames shown quickly to look like movement.
More frames per second mean better quality
What is a pixel in an image?
Why is compression often used for video and audio data?
Which type of data uses ASCII or Unicode as a standard system for storage?
How is text data usually represented in digital systems?
(a) is (b) (c) using character sets (d)
(a) are (b) as (c) and each (d) has a (e)
(a) images have (b) which means (c) but (d)
The letter A might be stored as the (a) (bin... co...) 01000001.
Images are represented as tiny dots called (a) ( pix...), and each pixel has a binary colour value.
(a) (Hig... reso...) images have more pixels, which means better detail but larger file sizes.
(a) is (b) converting (c) , each stored as (d)
(a) per (b) (sample rate), the (c) and higher (d)
Audio data is created by converting sound waves into (a) (samp...) , each stored as binary values.
The more samples taken per second,sps ( (a) ) (sam... ra..) , the clearer and higher quality the sound.
(a) is made from of (b) shown (c) combined (d)
The smoother the video, the more (a) (fps) are used, such as 30 fps or 60 fps.
(a) video, the (b) (fps) are used, such as (c)
A song saved as an (a) (MP... fil...).
A photo is stored in (a) a (JP...) or PNG format.
A movie or video is saved as (a) a (M...) file format.
Sound waves are converted into digital samples. Each sample is stored as (a) (bin...).
(a) series of (b) images shown in (c) to (d)
Animation is a series of drawn or (com... gen... im...) (CGI) shown in order to create movement.
(a)
A cartoon or 3D animation is saved as (a) (Graphics Interchange Format) or AVI.
What does the term 'resolution' refer to in digital images?
The number of colors in an image.
The size of the image file.
The number of pixels that make up an image.
The speed at which an image loads.
Which of the following is the correct order of data size from smallest to largest?
Megabyte, Kilobyte, Byte, Bit
Bit, Byte, Kilobyte, Megabyte
Byte, Bit, Megabyte, Kilobyte
Kilobyte, Bit, Byte, Megabyte
Which of the following best describes a kilobyte?
A kilobyte is 1024 bytes.
A kilobyte is 8 bits.
A kilobyte is 100 bytes.
A kilobyte is the smallest unit of data.
Which of the following is used to encode text characters in computers?
MP3
PNG
ASCII
JPEG
Which unit is the smallest: bit, byte, kilobyte, or megabyte?
Byte
Kilobyte
Megabyte
Bit
Organise these options into the correct I-P-O stages
Type 5 + 3
Type username + password
Adds the numbers together
Checks if they match saved data
Shows 8 on screen
“Access Granted” or “Wrong Password”
Type English sentence
Translates into another language
Shows Spanish/other text
Click “Buy” on a shirt
Calcualtes payment + updates order
“Order Confirmed” message
Which one is an example of INPUT in a computer system?
The answer 25 showing on a calculator screen
Typing the numbers 10 + 15
Adding numbers together inside the computer
A red traffic light making the car stop
What is the PROCESS in an online shopping system?
Checking payment details and updating the order
Which of the following is an OUTPUT process?
Entering your password
Typing your username
The computer checking if the password is correct
Seeing “Access Granted” on the screen
In Google Translate, what is the PROCESS?
Reading the Spanish sentence on screen
Writing a sentence in English
Translating English into Spanish inside the computer
Saying the sentence aloud
