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Computer Malware

 Malware -Spyware- Passes information on to a criminal without the user's knowledge. It is often packaged with free software. -Virus- A program hidden in another program or file, designed to cause damage to file systems -Trojans- Installed by a user thinking it is a legitimate piece of software when it will actually cause damage or provide access to criminals. -Worms- A malicious program that acts independently and  can replicate itself and spread throughout a system. -Phishing- Uses email, text messages and phone calls to impersonate  (for example) a financial organisation to harvest information and abuse it against the user to allow criminal access. -Pharming- The redirecting of a user's website- by modifying their Domain Name System (DNS) entries- to a fraudulent site site without their permission. -Ransomware Attacks a computer system, requiring the user to pay a ransom to unlock it. -Brute force A brute force attack repeatedly tries different usernames and passwords ...
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Compuer Architecture Question

QUIZ COMPUTER ARCHITECTURE  1. Early computers were not able to without human intervention. Why?   A . The early computers did not have a memory unit.  B. The early computers were very big.  C. The early computers had frequent power failures.   2. What are the main components of a computer with von Neumann architecture?  A. Processor and input-output devices.   B . Processor, memory unit and input-output devices.  C. CPU, monitor, keyboard and mouse.   3. Which of the following buses is bi-directional?  A. Address bus.  B . Data bus.  C. Control bus.   4. What is the function of control signals?  A. Synchronises the components of the computer.  B. Controls the amount of data to be stored in memory.  C. User sends control signals to control the processor.   5. What is a register?  A. Address of data found in computer memory.  B . High-speed storage area within the computer.  C. Control si...
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Insertion shot

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Copyright designs & patents

Details of Homework Complete your write up of the Copyright Designs and Patents Act and create a colourful mindmap. Complete your write up of the Computer Misuse Act and create a colourful mindmap You can copyright: Film, Literature, TV programs, Song/Music, Pictures, Games, Software. Google definition of Copyright:" the exclusive and assignable legal right, given to the originator for a fixed number of years, to print, publish, perform, film, or record literary, artistic, or musical material." Google definition  of patents:" a government authority or licence conferring a right or title for a set period, especially the sole right to exclude others from making, using, or selling an invention." Definition of Copyright Designs and Patents Act from Legislation.gov.uk- An Act to restate the law of copyright, with amendments; to make fresh provision as to the rights of performers and others in performances; to confer a design right in origina...
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Controlling Dog Obesity Medical dispenser
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Ram/Rom

30th Sept 2019 RAM -Random Access Memory -Programs data + Operating System -Volatile -Read/Write ROM -Read only -Non-Volatile -Bootstrap loader
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Computer Science

Computer Architecture (a) Describe the purpose of two registers that are used by Von Neumann architecture. Memory Address Register- The Memory address register stores the address of where the instruction is to be sent, or where it is from. Arithmetic Logic Unit- The arithmetic logic unit is used for mathematical equations (/, +, *,-) (b) Identify four events that take place during the fetch-execute cycle. Fetch the instruction Decode the instruction Program counter will go up by one Execute. (c) Gareth’s sat-nav contains an embedded system. Define what is meant by an embedded             system. An embedded system is a controller with a dedicated function within a larger mechanical or electrical system (In this case, the satnav)                              ...
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