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Draw a diagram showing the
components of a Computer System.
If it takes 8 bits to store an ASCII character…
How many bytes does the word ‘PROCESSOR’
take to store?
When talking about Storage, what is meant by the term Volatile?
Give an example.
Identify and explain the following Programming
Constructs?S_ _ _ _ _ _ _
S_ _ _ _ _ _ _ _I_ _ _ _ _ _ _ _
With regards to capacity, durability,
speed and portability, compare 3 storage
devices.
Define the following terms:
VariableOpcodeOperandConstant
Array72 Days 71 Days 70 Days
What is meant by the following terms? Use examples to help you:
PhishingMalware
Denial of ServiceBrute Force
def Birthday(Age): Age+=1 return AgeAge_now = Birthday(12)
print(Age_now)What will be printed
when this code is executed?
Bullet point the steps of this program.
Explain what is meant by the term “Physical
Security.
Explain using examples what Abstraction is?
Why is this important?
List the components of the Von Neumann CPU
architecture.
What is meant by the following terms:
ValidationVerification
AuthenticationIterative Testing
Final/Terminal Testing
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Define the 3 different storage technologies, give examples of their
use.
Sort the following list of numbers using a Bubble Sort, making sure that
you write down the steps you have
performed.2 5 4 3 1
Bullet point the steps in the Fetch - Decode -
Execute Cycle.
Explain what a Syntax Error is making sure
that you give an example of a Syntax
Error.
What are the main differences between
RAM and ROM?
If black is stored as 00 and white is stored as
01. What is the following image?
000100000100000100010001010001000100000100000100000100
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Define the term “Virtual Memory”.
Explain the following SQL statement:
FROM Films SELECT *WHERE ReleaseYear >
2010
Suggest 3 ways of upgrading the
performance of a Computer, explain why
your suggestion will improve performance.
Using a flowchart or pseudocode write an
algorithm for a program that prints all the
numbers between 1 and 100.
What is Cache? Explain its purpose.
List the different data types available.
Provide an example for each.
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Explain how the CPU and RAM work
together.You could use a
diagram if you think that would help you.
Explain what a Logic Error is, making sure
that you give an example of a Logic
Error.
Give 5 rules that people should follow when creating passwords.
Explain using examples what Decomposition is?
Why is it important?
Explain what the following CPU parts do?
AccumulatorProgram Counter
ALUMARMDR
What is the best search method for finding the number 7 in this list? Explain your answer:
9 3 2 4 5 6 7 8 1 10
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Using examples, what is meant by the term
“Cores”? How do they affect the performance
of a CPU?
Describe using the following terms how sound is stored on a
computer:Sample Rate Amplitude
Bit rateBit depth
Describe what is meant by hardware and software and give
2 examples of each.
How many different colours can be stored
using: A bit?
A nibble? A byte?
Describe what is meant by an embedded system. Give an example of an
embedded system.
Draw the logic diagram for the statement NOT
(A and B).
Create a Truth Table for this statement.
57 Days 56 Days 55 DaysWhat is the job of the
Memory Address Register (MAR) and the Memory Data Register
(MDR)?
Explain using an example of how data is stored in, and accessed
from an Array.
Define primary, secondary and tertiary
storage and give an example of each.
What is an overflow error? How do they
occur? Use an example to help you explain your
answer.
What is a checksum?What is a check digit?Why and where are
they used?
What features are there in IDLE that aid in the
writing of Python programs?
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What are the factors that affect the
performance of a CPU?
Convert 36 from Hexadecimal to binary.
List the common protocols encountered
when using the Internet and Email.
What is 5C converted from Hex to Binary and
Denary?
Define the term “Operating System”?
What is the purpose of an Operating System?
Add 10100100 to 0100110
Show your working.
51 Days 50 Days 49 DaysHow many bits are in:
A Nibble?A Byte?
How many bytes are in:A Kilobyte?
A Megabyte?A Gigabyte?A Terabyte?A Petabyte?
Explain how digital images are stored,
make sure you include: Bit Depth, Resolution,
Pixels.
Place these in order of capacity from smallest
to largest:CD, 32GB Flash Drive,
Blu-Ray,1TB HDD, 512MB SD card
What is 11010010 converted to Denary
and Hex?What is 11111111
converted to Hexadecimal?
What is 0F in binary?
List the most common system security threats and the methods used
to counteract them.
Write a pseudocode program that simulates 3 hands of Rock, Paper,
and Scissors.
Use Loops & IF statements.
48 Days 47 Days 46 DaysWhat is a client server
and peer to peer network and where you
Draw the common flowchart symbols used for Algorithms, explain
What is the difference between a WAN and a
LAN?
Explain why a programmer would use
Hexadecimal.
Describe what is meant by the terms “DNS”, “Hosting” and “The
What can programmers do to their code in
order to make it easier
might see them? Give one advantage and
disadvantage of each.
what each symbol is used for and give an
example of usage showing your
understanding.
Cloud”. to maintain?
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List three things that a data packet contains.
Draw a Truth Table for:ANDOR
NOTA = (B AND C) NOT D
List the 4 layers of network protocols. Give three reasons why we divide protocols into
layers.
Describe how a linear search algorithm works.
Describe what is meant by utility software. Give two examples of utility
software.
A user has a list of names stored in a list. Write an algorithm in pseudocode to check
whether a certain name is on the list.
42 Days 41 Days 40 DaysState the difference between proprietary
and open source software. Given an
advantage and disadvantage for each.
Describe the stages of a binary search on a list
of items sorted in ascending order.
Discuss how network and password policies
can reduce the security threats posed by users.
Describe the stages of insertions sort
algorithm as it sorts data into an ascending
order.
Explain the role of penetration testing in
assessing network security.
Write a list of 7 numbers. Using insertion sort, put
the data into an ascending order. Make
sure you show each stage.
39 Days 38 Days 37 DaysWhat is a stakeholder?
Identify who the stakeholders would be
in the release of the new iPhone.
Describe how a merge sort works. Explain the advantage of using this
technique.
List three rights that people have regarding the data that is stored
about them.
Explain what is meant by the term “trace
tables”.
Explain what is meant by the term “digital
divide”.
Provide 3 reasons why you would add
comments into your code.
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Describe what is held in the Memory Address
Register (MAR).
Create an algorithm to represent a merge sort.
Explain the role of the Program Counter.
State why variables and constants should be
given meaningful names.
List three common characteristics of CPU’s
that affect their performance.
Create an algorithm to represent a bubble sort.
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Discuss the advantages and disadvantages of an embedded system.
Describe what is meant by the term “iteration”?What are the two types
of iteration loops?
State three checks that the BIOS carries out at
start-up.
Create an algorithm to represent an insertion
sort.
Discuss the role of ROM in a computer system.
When you convert from one data type to
another it is known as what? Why would you
do this?
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Explain the benefit of virtual memory.
Write an algorithm that prompts the teacher to enter a mark and then display the appropriate
comment: Excellent, Very Good,
Good, Satisfactory andUnsatisfactory.
Give two reasons, with appropriate examples,
of why secondary storage is needed.
A number trick asks you to think of a number,
double it, add six, divide it in half and then subtract the
number you started with. Write pseudocode
to represent this.
Give two advantages and two disadvantages of solid-state storage.
A user wants to write the names and scores of students to a text
file. Write the pseudocode for this.
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Define the term “LAN”.
Explain what is meant by a subprogram.
Describe two advantages to a
programmer of using subprograms.
Give two advantages and two disadvantages
of magnetic storage.
State the difference between functions and
procedures.
Define the term “WAN”.
Explain the difference between IF statement
and Switch-CaseStatement.
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Give two advantages and two disadvantages
of optical storage.
An alarm system uses three switches, A B C. Switch C is the master switch and the alarm
will not sound unless it is on. The alarm will
then sound when either switches A or B are on.Draw a logic diagram
for this.
Give 3 features of a star network.
Describe two advantages for a
programmer of writing programs in a high-level
language.
Give 3 features of a mesh network.
Describe two advantages for a
programmer of writing programs in a low-level
language.
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Give 2 advantages of a client-server network.
Outline one advantage and one disadvantage
of each method for programmers and
users:Compiler and
Interpreter
Give 2 disadvantages of a client-server network.
Why is it important for programs to have a defensive design?
Give 2 advantages of a peer-to-peer network.
A file has a size of 72000000000 bits.
Calculate the file size in megabytes and
gigabytes. Show your working.
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Give 2 disadvantages of a peer-to-peer network.
Convert the decimal number 199 into an 8-
bit binary number. Show your working
Explain the role of a router in a network.
Explain what is meant by a binary shift.
Describe the purpose of a NIC.
Complete a 2 place left shift on the binary number 10101011.
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Discuss the advantages and disadvantages of
wireless networks.
State the effect of performing a
2 place right shift on a binary number.
Explain the role of the DNS server.
Convert the 8-bit binary number 11010101 and
10111101 into hexadecimal number. Show your working.
Describe the advantages of using
cloud computing.
Unicode can be used to represent text in a computer system.
Explain the difference between the character
sets of Unicode and ASCII.
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Define the term “Ethernet”.
Describe the difference between lossless and
lossy compression.
Explain the difference between a MAC
address and an IP address.
Describe an advantage of compressing files.
Describe the function of TCP and IP protocols.
An image has the following properties: width = 2000 height
= 3000 colour depth = 24. Calculate the file size of this image in
megabytes. Show your working.
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Explain how data packets travel.
State what is meant by sampling frequency.
Describe the benefits of using network layers.
Describe the effect of increasing the sampling
frequency.
Give three advantages of packet switching.
Define what is meant by the “bit-rate” of a
recording and explain how it can be calculated.
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Define “Network Forensics”.
One type of testing is iterative. Describe iterative testing.
List six features that an operating system
includes.
When entering user input into a program,
we often use validation. What is validation and
what does it do?
Describe how an operating system
manages memory.
If Rebecca decides to use a high-level
programming language, why will she need a
translator?3 Days 2 Days 1 Day
Define the term “character set” and give
two examples.
A tablet receives sound from a microphone.
Explain how the tablet converts the sound to a
file.
Explain how the following list of
numbers is sorted using a merge sort: 54 26 93 17
When programming, there are three basic
constructs that we can use to control the flow of the program. Name,
describe and give an
Explain why we test programs.
Explain why data are represented in binary form for a computer system rather than using denary form.
example of each.
