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OCR GCSE COMPUTER SCIENCE EXAMS COMPILATION BUNDLE
OCR GCSE COMPUTER SCIENCE EXAMS COMPILATION BUNDLE
[Show more]OCR GCSE COMPUTER SCIENCE EXAMS COMPILATION BUNDLE
[Show more]What does the 'Operating System' do with peripheral devices? 
Allow the computer to communicate with them 
 
 
 
What does the word 'Interface' mean? 
A menu that the user can interact with 
 
 
 
 
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Add to cartWhat does the 'Operating System' do with peripheral devices? 
Allow the computer to communicate with them 
 
 
 
What does the word 'Interface' mean? 
A menu that the user can interact with 
 
 
 
 
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CPU 
Central Processing Unit: The main part of the computer, consisting of the registers, ALU and control unit. 
 
 
 
Von Neumann Architecture 
Traditional computer architecture that forms the basis of most digital computer systems. Instructions are fetched, decoded and executed one at a time. 
 
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Add to cartCPU 
Central Processing Unit: The main part of the computer, consisting of the registers, ALU and control unit. 
 
 
 
Von Neumann Architecture 
Traditional computer architecture that forms the basis of most digital computer systems. Instructions are fetched, decoded and executed one at a time. 
 
 ...
List two components with which the CPU works to execute program instructions. 
Memory 
Input and Output Devices 
 
 
 
Describe the role of the Control Unit in the fetch-decode-execute cycle. 
The control unit coordinates the actions of the computer. It sends out control signals to other parts of th...
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Add to cartList two components with which the CPU works to execute program instructions. 
Memory 
Input and Output Devices 
 
 
 
Describe the role of the Control Unit in the fetch-decode-execute cycle. 
The control unit coordinates the actions of the computer. It sends out control signals to other parts of th...
What does the CPU stand for? 
The Central Processing Unit. 
 
 
 
What is the CPU? 
The brain of the computer system. 
 
 
 
 
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What does the CPU do? 
Process all the data and ...
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Add to cartWhat does the CPU stand for? 
The Central Processing Unit. 
 
 
 
What is the CPU? 
The brain of the computer system. 
 
 
 
 
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What does the CPU do? 
Process all the data and ...
What is a network? 
A network is a set of connected computers and other devices in order to share resources. This includes files, application software and hardware. 
 
 
 
What are the two types of network? 
LAN and WAN 
 
 
 
What is a LAN? 
Local Area Network - covers a small geographical area 
 
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Add to cartWhat is a network? 
A network is a set of connected computers and other devices in order to share resources. This includes files, application software and hardware. 
 
 
 
What are the two types of network? 
LAN and WAN 
 
 
 
What is a LAN? 
Local Area Network - covers a small geographical area 
 
...
Define what is meant by abstraction. 
Abstraction means removing unnecessary details to focus on the important elements. 
 
 
 
What is an algorithm? 
An algorithm is a step-by-step procedure for solving problems. 
 
 
 
 
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Add to cartDefine what is meant by abstraction. 
Abstraction means removing unnecessary details to focus on the important elements. 
 
 
 
What is an algorithm? 
An algorithm is a step-by-step procedure for solving problems. 
 
 
 
 
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What is the purpose of systems software? 
Software designed to run or maintain a computer 
 
 
 
Describe the functionality of systems software. 
It controls the operations of computer hardware 
 
 
 
 
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Add to cartWhat is the purpose of systems software? 
Software designed to run or maintain a computer 
 
 
 
Describe the functionality of systems software. 
It controls the operations of computer hardware 
 
 
 
 
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Primary Memory 
Memory that can be addressed and accessed directly by the processor. 
 
 
 
2 types of primary memory 
->RAM (Random Access Memory) 
-> RAM (Read Only Memory) 
 
 
 
 
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Add to cartPrimary Memory 
Memory that can be addressed and accessed directly by the processor. 
 
 
 
2 types of primary memory 
->RAM (Random Access Memory) 
-> RAM (Read Only Memory) 
 
 
 
 
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Arithmetic Logic Unit (ALU) 
Performs operations on data e.g. Addition, subtraction 
 
 
 
Control Unit (CU) 
Coordinating activities of the CPU 
 
 
 
 
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Add to cartArithmetic Logic Unit (ALU) 
Performs operations on data e.g. Addition, subtraction 
 
 
 
Control Unit (CU) 
Coordinating activities of the CPU 
 
 
 
 
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Computational thinking 
The steps you take to find rhe best solution to a complex problem 
 
 
 
Three key techniques for computational thinking 
Decomposing - breaking down into smaller problems and solving individually 
Abstraction - picking out the important bits 
Algorithmic thinking - logical w...
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Add to cartComputational thinking 
The steps you take to find rhe best solution to a complex problem 
 
 
 
Three key techniques for computational thinking 
Decomposing - breaking down into smaller problems and solving individually 
Abstraction - picking out the important bits 
Algorithmic thinking - logical w...
TCP 
This sets how devices communicate on a network, responsible for splitting the data into packets and reassembling the packets into the original order once they reach the desired device. 
 
 
 
IP 
The protocol responsible for packet switching. 
 
 
 
 
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This sets how devices communicate on a network, responsible for splitting the data into packets and reassembling the packets into the original order once they reach the desired device. 
 
 
 
IP 
The protocol responsible for packet switching. 
 
 
 
 
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Computer 
A machine that processes data. 
 
 
 
Embedded Systems 
Computers built into other devices, like dishwashers, microwaves and TVs. 
 
 
 
 
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CPU 
Known as the 'brain...
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A machine that processes data. 
 
 
 
Embedded Systems 
Computers built into other devices, like dishwashers, microwaves and TVs. 
 
 
 
 
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CPU 
Known as the 'brain...
COMPUTER SCIENCE OCR GCSE COMPONENTS OF A COMPUTER SYSTEM EXAM QUESTIONS AND ANSWERS
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Add to cartCOMPUTER SCIENCE OCR GCSE COMPONENTS OF A COMPUTER SYSTEM EXAM QUESTIONS AND ANSWERS
GCSE OCR COMPUTER SCIENCE NETWORKS EXAM QUESTIONS FULLY SOLVED.
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Add to cartGCSE OCR COMPUTER SCIENCE NETWORKS EXAM QUESTIONS FULLY SOLVED.
What is a stand-alone computer? 
a computer that is not connected to a network 
 
 
 
What is a network? 
two or more electronic devices that are connected together. They can be wired or wireless 
 
 
 
 
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Add to cartWhat is a stand-alone computer? 
a computer that is not connected to a network 
 
 
 
What is a network? 
two or more electronic devices that are connected together. They can be wired or wireless 
 
 
 
 
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What is RAM? 
Random Access Memory 
 
 
 
What is ROM? 
Read Only Memory 
 
 
 
 
What does volatile mean? 
Loses all contents when power is lost 
 
 
 
Is RAM volatile or non-volatile? 
RAM is volatile 
 
 
 
Is ROM volatile or non-volatile? 
ROM is non-volatile 
 
 
 
What is the purpose of RAM? 
...
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Add to cartWhat is RAM? 
Random Access Memory 
 
 
 
What is ROM? 
Read Only Memory 
 
 
 
 
What does volatile mean? 
Loses all contents when power is lost 
 
 
 
Is RAM volatile or non-volatile? 
RAM is volatile 
 
 
 
Is ROM volatile or non-volatile? 
ROM is non-volatile 
 
 
 
What is the purpose of RAM? 
...
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what is the purpose of the CPU? 
to process data by following the fetch-decode-execute cycle, it's incharge of searching, sorting, calculating and decision making 
 
 
 
what happens at the fetch stage? 
the CPU fetches data and instructions from RAM and then stores them in it's own temporary memo...
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Add to cartwhat is the purpose of the CPU? 
to process data by following the fetch-decode-execute cycle, it's incharge of searching, sorting, calculating and decision making 
 
 
 
what happens at the fetch stage? 
the CPU fetches data and instructions from RAM and then stores them in it's own temporary memo...
Computational Thinking 
Applying the methods of computer scientists to problem solving 
 
 
 
Heuristics 
Making decisions based on past experience and human judgement 
 
 
 
Algorithm 
A methodical, logical rule or procedure that guarantees solving a particular problem 
 
 
 
Crowdsourcing 
Using t...
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Add to cartComputational Thinking 
Applying the methods of computer scientists to problem solving 
 
 
 
Heuristics 
Making decisions based on past experience and human judgement 
 
 
 
Algorithm 
A methodical, logical rule or procedure that guarantees solving a particular problem 
 
 
 
Crowdsourcing 
Using t...
OCR GCSE COMPUTER SCIENCE - PROGRAMMING (PAPER 2)EXAM QUESTIONS AND ANSWERS.
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Add to cartOCR GCSE COMPUTER SCIENCE - PROGRAMMING (PAPER 2)EXAM QUESTIONS AND ANSWERS.
What is Data Protection Act 1998? 
1. Controls the use of personal data 
 
2. When collecting personal data, they need to register with the government. 
 
3. Say what they'll collect and how they will use it 
 
4. Data subjects have the right to see personal data that an organisation holds about th...
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Add to cartWhat is Data Protection Act 1998? 
1. Controls the use of personal data 
 
2. When collecting personal data, they need to register with the government. 
 
3. Say what they'll collect and how they will use it 
 
4. Data subjects have the right to see personal data that an organisation holds about th...
Which data type will only use whole numbers? 
Integer 
 
 
 
Which data type will use whole numbers as well as decimals? 
Float (Real) 
 
 
 
Which data type will only work with sections of text? 
String 
 
 
 
Which data type stores single letters, numbers and symbols as text? 
Character 
 
 
 
Whi...
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Add to cartWhich data type will only use whole numbers? 
Integer 
 
 
 
Which data type will use whole numbers as well as decimals? 
Float (Real) 
 
 
 
Which data type will only work with sections of text? 
String 
 
 
 
Which data type stores single letters, numbers and symbols as text? 
Character 
 
 
 
Whi...
What do we mean by ethics? 
Ethics are moral principles, or rules, which govern a person's attitudes and behaviour 
 
 
 
What is a source code? 
The list of programming commands that are compiled into an executable program 
 
 
 
 
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Add to cartWhat do we mean by ethics? 
Ethics are moral principles, or rules, which govern a person's attitudes and behaviour 
 
 
 
What is a source code? 
The list of programming commands that are compiled into an executable program 
 
 
 
 
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Arithmetic Logic Unit (ALU) 
Performs operations on data e.g. Addition, subtraction 
 
 
 
Control Unit (CU) 
Coordinating activities of the CPU 
 
 
 
 
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Add to cartArithmetic Logic Unit (ALU) 
Performs operations on data e.g. Addition, subtraction 
 
 
 
Control Unit (CU) 
Coordinating activities of the CPU 
 
 
 
 
Brainpower 
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