G10 - CS - End of Year Test - Soheil Meskini | Library

Instructions

4

A software developer is using a microphone to collect various sounds for his new game.
He is also using a sound editing app. When collecting sounds, the software developer can decide on the sampling resolution he wishes to use.

i) What is meant by sampling resolution? [1]
ii) Describe how sampling resolution will affect how accurate the stored digitised sound will be. [3]

8

The software developer in Q1. will include images in his new game.

i) Explain the term image resolution. [1]
ii) The software developer is using 16-colour bitmap images. How many bits would be used to encode data for one pixel of his image? [1]
iii) One of his images is 16 384 pixels wide and 512 pixels high. He decides to save it as a 256-colour bitmap image. Calculate the size of the image file in gibibytes. [3]
iv) Describe any file compression techniques the developer may use. [3]

6

a) Convert denary 100 to its 8 bits binary equivalent. [2]
b) convert denary 100 to hexadecimal equivalent. [2]
c) convert denary 100 to binary -100. [2]

2

Name two application of hexadecimal numbers.

5

Select the appropriate column in the following table to indicate whether the named software is system software or application software.

6

Choose three features of an operating system and describe their function.

5

Match utility programs with descriptions?

Draggable item		Corresponding Item
Software that rearranges data on a hard disk drive (HDD) to reduce the scattering of the data stored on the HDD		virus scanner
		defragmentation

2

What is meant by virtual memory?

1

Which of the following will produce a signal which is sent to the CPU to suspend its current operation?

bootstrap

buffer

interrupt

quarantine

5

4

Identify and describe two methods of error checking that can be used in Question 10 to make sure that the data stored after transmission is accurate.

4

Nancy has captured images of her holiday with her camera. The captured images are stored as digital photo files on her camera.
Explain how the captured images are converted to digital photo files.

4

Nancy wants to email photos to Nadia. Many of the photos are very large files, so Nancy needs to reduce their file size as much as possible.
Identify which type of file compression would be most suitable for Nancy to use.
Explain your choice.

8

An air conditioning unit in a car is being controlled by a microprocessor and a number of sensors.

a) Describe the main differences between control and monitoring of a process. [2]
b) Describe how the sensors and microprocessor would be used to control the air conditioning unit in the car. Name at least two different sensors that might be used and explain the role of positive feedback in your description. [6]

11

a) Identify the logic gates (write the name on the logic gate). [3]
b) Write the Boolean expression for the circuits. [3]
c) Complete the truth table for the following logic diagram [5]

	Application Software	System Software
Operating system
QR code reader
Printer driver
On-screen calculator
Anti-virus software

Draggable item		Corresponding Item
Software that rearranges data on a hard disk drive (HDD) to reduce the scattering of the data stored on the HDD		virus scanner
Program that supplies static or moving images on a monitor when the computer has been idle for a period of time		defragmentation
Software that communicates with the operating system and translates data into a format understood by an input/output device		security software
Software that manages access control and user accounts and also protects network interfaces		screen saver
Software that runs in the background and checks for malware; suspect programs are quarantined and deleted if necessary		device driver

	False	True
Full Duplex data transmission can be either serial or parallel
Full Duplex data transmission is when data is transmitted both ways, but only one way at a time
Full Duplex transmission is always used to connect a device to a computer
Full Duplex data transmission is when data is transmitted both ways at the same time
Full Duplex data transmission automatically detects any errors in data

G10 - CS - End of Year Test

G10 - CS - End of Year Test

a) Convert denary 100 to its 8 bits binary equivalent. [2]b) convert denary 100 to hexadecimal equivalent. [2]c) convert denary 100 to binary -100. [2]

Name two application of hexadecimal numbers.

Select the appropriate column in the following table to indicate whether the named software is system software or application software.

Choose three features of an operating system and describe their function.

Match utility programs with descriptions?

What is meant by virtual memory?

Which of the following will produce a signal which is sent to the CPU to suspend its current operation?

Identify and describe two methods of error checking that can be used in Question 10 to make sure that the data stored after transmission is accurate.

Nancy has captured images of her holiday with her camera. The captured images are stored as digital photo files on her camera.Explain how the captured images are converted to digital photo files.

Nancy wants to email photos to Nadia. Many of the photos are very large files, so Nancy needs to reduce their file size as much as possible.Identify which type of file compression would be most suitable for Nancy to use. Explain your choice.

a) Identify the logic gates (write the name on the logic gate). [3]b) Write the Boolean expression for the circuits. [3]c) Complete the truth table for the following logic diagram [5]

a) Convert denary 100 to its 8 bits binary equivalent. [2]b) convert denary 100 to hexadecimal equivalent. [2]c) convert denary 100 to binary -100. [2]

Name two application of hexadecimal numbers.

Select the appropriate column in the following table to indicate whether the named software is system software or application software.

Choose three features of an operating system and describe their function.

Match utility programs with descriptions?

What is meant by virtual memory?

Which of the following will produce a signal which is sent to the CPU to suspend its current operation?

Maisey purchases a new router and attaches it to her computer.The connection she sets up uses full duplex data transmission.Five statements are given about full duplex data transmission.Select if the statement is True or False.

Identify and describe two methods of error checking that can be used in Question 10 to make sure that the data stored after transmission is accurate.

Nancy has captured images of her holiday with her camera. The captured images are stored as digital photo files on her camera.Explain how the captured images are converted to digital photo files.

Nancy wants to email photos to Nadia. Many of the photos are very large files, so Nancy needs to reduce their file size as much as possible.Identify which type of file compression would be most suitable for Nancy to use. Explain your choice.

a) Identify the logic gates (write the name on the logic gate). [3]b) Write the Boolean expression for the circuits. [3]c) Complete the truth table for the following logic diagram [5]

a) Convert denary 100 to its 8 bits binary equivalent. [2]
b) convert denary 100 to hexadecimal equivalent. [2]
c) convert denary 100 to binary -100. [2]

Nancy has captured images of her holiday with her camera. The captured images are stored as digital photo files on her camera.
Explain how the captured images are converted to digital photo files.

Nancy wants to email photos to Nadia. Many of the photos are very large files, so Nancy needs to reduce their file size as much as possible.
Identify which type of file compression would be most suitable for Nancy to use.
Explain your choice.

a) Identify the logic gates (write the name on the logic gate). [3]
b) Write the Boolean expression for the circuits. [3]
c) Complete the truth table for the following logic diagram [5]

a) Convert denary 100 to its 8 bits binary equivalent. [2]
b) convert denary 100 to hexadecimal equivalent. [2]
c) convert denary 100 to binary -100. [2]

Maisey purchases a new router and attaches it to her computer.
The connection she sets up uses full duplex data transmission.
Five statements are given about full duplex data transmission.
Select if the statement is True or False.

Nancy has captured images of her holiday with her camera. The captured images are stored as digital photo files on her camera.
Explain how the captured images are converted to digital photo files.

Nancy wants to email photos to Nadia. Many of the photos are very large files, so Nancy needs to reduce their file size as much as possible.
Identify which type of file compression would be most suitable for Nancy to use.
Explain your choice.

a) Identify the logic gates (write the name on the logic gate). [3]
b) Write the Boolean expression for the circuits. [3]
c) Complete the truth table for the following logic diagram [5]