MEGA HOMEWORK 51 homeworks to do WRITTEN NEATLY

MEGA HOMEWORK 51 homeworks to do!

WRITTEN NEATLY ON PAPER • TITLE: INTERNET DANGERS • Research on the Internet 4 different dangers of the Internet. NAME them on a piece of paper. • For each danger EXPLAIN what it does and why it is a danger. • For each danger EXPLAIN at least one way to protect yourself.

WRITTEN NEATLY ON PAPER • TITLE: THE HISTORY OF THE WEB • Who invented the world wide web and WHY? • When was it invented? • Who invented the Internet and WHY? • When was it invented?

WRITTEN NEATLY ON PAPER • TITLE: DESIGNING FOR AUDIENCE • Name 2 things you can put in a presentation to make it suitable for a child audience. • Name 2 things you can put in a presentation to make it suitable for a adult audience.

WRITTEN NEATLY ON PAPER • TITLE: VIRTUAL REALITY • DIAMOND: What is Virtual reality • DIAMOND: EXPLAIN how it is a MODEL of a real or imaginary situation. • PLATINUM: Research some new virtual reality hardware coming out his year. NAME 3 of them and write down some INFO about them.

WRITTEN NEATLY ON PAPER • TITLE: COMPUTER MODELLING • DIAMOND: What is a computer model? • DIAMOND: EXPLAIN how the weather is modelled. • DIAMOND: What variables would the weather model need to consider? • PLATINUM: Research some other computer models. NAME 3 of them and write down some INFO about them.

WRITTEN NEATLY ON PAPER • TITLE: BINARY • DIAMOND: What two numbers are used in BINARY? • DIAMOND: EXPLAIN why computers use BINARY. • DIAMOND: Convert 98 into binary. Convert 1100101 into decimal • PLATINUM: Research some other computer models. NAME 3 of them and write down some INFO about them.

WRITTEN NEATLY ON PAPER • TITLE: CLOUD STORAGE/CLOUD COMPUTING • DIAMOND: RESEARCH and EXPLAIN what is CLOUD STORAGE? • DIAMOND: EXPLAIN the ADVANTAGES & DISADVATNAGES of CLOUD STORAGE. • DIAMOND: RESEARCH and EXPLAIN what is CLOUD COMPUTING? • PLATINUM: EXPLAIN the ADVANTAGES & DISADVATNAGES of CLOUD COMPUTING.

WRITTEN NEATLY ON PAPER • TITLE: NETWORKS • DIAMOND: What is a computer network? • DIAMOND: Name 3 types of network. • DIAMOND: What are the advantages of a star network over a ring network? • PLATINUM: What network do we use in the school. Is it a LAN, WAN, PAN or WLAN

WRITTEN NEATLY ON PAPER • TITLE: INPUT & OUTPUT DEVICES • DIAMOND: What is an input and output device? • DIAMOND: Name 3 types of input device. • DIAMOND: Name 3 types of output device • PLATINUM: What input/output devices are there for people who have impaired vision or another disability?

WRITTEN NEATLY ON PAPER • TITLE: Logical reasoning • DIAMOND: What is the fault in this algorithm? OUTPUT 'How old are you? ' INPUT user inputs their age STORE the user's input in the age variable IF age > 17 THEN OUTPUT 'You are old enough to drive a car!' ELSE IF age < 17 THEN OUTPUT 'You are too young to drive a car. ‘ • PLATINUM: What line/s could you add to the algorithm to fix the fault?

WRITTEN NEATLY ON PAPER • TITLE: STORING IMAGES AS DATA • Above is an image that has a 1 bit colour palette • DIAMOND: How many colours in a 2 bit palette • DIAMOND: How many bits would it take to have 16 colours? • PLATINUM: How many colours are needed to display a photograph? What bit palette is needed?

WRITTEN NEATLY ON PAPER • TITLE: STORING SOUND AS DATA • Sound is inputted into the computer by sampling a real-world-sound • DIAMOND: How can you increase the quality of a recording? • DIAMOND: What is the difference between analogue and digital signals? • PLATINUM: Explain how MP 3 compresses sound.

WRITTEN NEATLY ON PAPER • Compressing files • DIAMOND: Why do we compress files? • DIAMOND: What is the difference between Lossy and Lossless compression? • PLATINUM: Name one Lossy and one Losseless compression system for images

WRITTEN NEATLY ON PAPER • TITLE: Client server • DIAMOND: What is the client server model? • DIAMOND: Where is the client server model used? • PLATINUM: Name some protocols used by computers. What do they do?

WRITTEN NEATLY ON PAPER • TITLE: Early computers • DIAMOND: Research the Colossus computer. What was it used for? • DIAMOND: How did they get data into the computer? • DIAMOND: How did they get data out of the computer? • PLATINUM: What was the first computer (hint: Maybe before electricity!!)

WRITTEN NEATLY ON PAPER • TITLE: Network hardware • DIAMOND: Research what a SWITCH is in computer networks. What was it used for? • DIAMOND: Research what a HUB is in computer networks. What was it used for? • DIAMOND: Research what a NIC is in computer networks. What was it used for? • PLATINUM: Why is a switch better then a hub?

WRITTEN NEATLY ON PAPER • TITLE: The CPU • DIAMOND: What does the CPU do? • DIAMOND: Explain in your own words the fetch-execute cycle? • PLATINUM: Why do computers need ROM?

WRITTEN NEATLY ON PAPER • TITLE: Computer and the law • DIAMOND: Name 3 responsibilities of a company under the DATA PROTECTION ACT ? • DIAMOND: Name two rules of the computer misuse act?

WRITTEN NEATLY ON PAPER • TITLE: EMAIL ETIQUETTE • RESEARCH email etiquette, what it means and some examples • NAME 4 rules in email etiquette that make sense to you • EXPLAIN each of the 4 rules

WRITTEN NEATLY ON PAPER • TITLE: COPYRIGHT LAW • RESEARCH copyright law, why it exists and how does it affect you in school? • EXPLAIN Copyright law and why it exists • EXPLAIN how it affects you in school • EXPLAIN how it would affect you once you left school

WRITTEN NEATLY ON PAPER • TITLE: CONTACT DETAILS • DIAMOND: Find the CONTACT details of Pixar and Disney (telephone, email, physical address) • DIAMOND: Why is their contact details important when thinking about copyright?

WRITTEN NEATLY ON PAPER • TITLE: BOOLEAN OPERATORS • DIAMOND: What does a OR and AND/+ do on a search engine? • DIAMOND: What would the search “Manchester NOT city” find when typed into a search engine? • PLATINUM: Who invented Boolean and why?

WRITTEN NEATLY ON PAPER • TITLE: HEXADECIMAL • DIAMOND: What is 212 in HEX? • DIAMOND: What is BB + CC in HEX? • PLATINUM: Why is Hexadecimal used in computers?

WRITTEN NEATLY ON PAPER • TITLE: Computer misuse act • DIAMOND: Name the 3 parts of the computer misuse act • PLATINUM: What is the maximum punishment if you break the computer misuse act?

WRITTEN NEATLY ON PAPER • TITLE: BINARY ARITHMETIC • DIAMOND: What is 212 in binary? • DIAMOND: What is 11011 + 10111 in binary? • DIAMOND: What is -176 in binary?

WRITTEN NEATLY ON PAPER • TITLE: Utility software • DIAMOND: Name THREE pieces of utility software • DIAMOND: Explain what each do • PLATINUM: What is the difference between utility and systems software?

WRITTEN NEATLY ON PAPER • TITLE: Graphene and hydrophobic coating • DIAMOND: What is graphene? What are the advantages/disadvantages • DIAMOND: What is hydrophobic coating? What are the advantages/disadvantages

WRITTEN NEATLY ON PAPER • TITLE: Data protection act • DIAMOND: What is the Data Protection Act? • DIAMOND: Name 4 responsibilities of the DATA USER • DIAMOND: Name 2 rights of the DATA SUBJECT

WRITTEN NEATLY ON PAPER • TITLE: Compression systems • DIAMOND: What is the difference between lossless and lossy compression? • DIAMOND: Which is best for photos JPEG of GIF? • DIAMOND: How does MP 3 compress audio data? • PLATINUM: Does Freeview use MPEG 2 or MPEG 4? What is the difference?

WRITTEN NEATLY ON PAPER • TITLE: DATA VALIADATION • DIAMOND: A database uses data validation. What is this? • DIAMOND: Explain PRESENCE validation • DIAMOND: Explain TYPE validation • DIAMOND: Explain FORMAT validation • DIAMOND: Explain RANGE validation

WRITTEN NEATLY ON PAPER • TITLE: Networks. Good or bad? (cost, data collisions, redundancy) • DIAMOND: Star network (cost, data collisions, redundancy)? ? • DIAMOND: Ring network (cost, data collisions, redundancy)? ? • DIAMOND: Bus network (cost, data collisions, redundancy)? ? • PLATINUM: Name and explain THREE pieces of network hardware

WRITTEN NEATLY ON PAPER • TITLE: Image optimisation • DIAMOND: What is image RESOLUTION? • DIAMOND: NAME 3 compression systems? • DIAMOND: How would you optimise an image for a website? • PLATINUM: What is the difference between LOSSY and LOSSLESS compression?

WRITTEN NEATLY ON PAPER • TITLE: Data input form • TEXT FIELD, TEXTBOX, RADIO BUTTONS, TICK BOXES, DROP-DOWN MENU • Which of the above would you use for a …… • DIAMOND: SURNAME? • DIAMOND: Writing a paragraph about yourself? • DIAMOND: Male or female?

WRITTEN NEATLY ON PAPER • TITLE: Storage • What are the advantages and disadvantages(storage size, portability, cost, ease of damage, speed etc) of…. • DIAMOND: External hard drive? • DIAMOND: CD ROM? • DIAMOND: Cloud? • DIMAOND: USB stick (SSD)

WRITTEN NEATLY ON PAPER • TITLE: Network hardware • Research and write in your own words what the following network hardware does…. • DIAMOND: Switch • DIAMOND: Modem • DIAMOND: Hub • DIMAOND: NIC

WRITTEN NEATLY ON PAPER • TITLE: DIFFERENT PROGRAMMING LANGUAGES • Name 3 programming languages that are popular. • What programs are made using these languages. • EG PHP makes webpages

WRITTEN NEATLY ON PAPER • TITLE: POWER OF PROGRAMMING • RESEARCH amazing things that programming has allowed human beings to do. (Mars missions, drones, driverless cars, land on a comet, Internet etc) • EXPLAIN one of the systems you identified in detail – – What are the advantages of the system you identified? What language do you think it was written in? What constructs are used in the system you identified? (Variables, loops, selection, functions etc)

WRITTEN NEATLY ON PAPER • TITLE: STRING MANIPULATION • Think about using the Internet • Where do you think string manipulation is used and how? Give TWO examples.

WRITTEN NEATLY ON PAPER • TITLE: ANIMATION • DIAMOND: RESEARCH and EXPLAIN how animation was made BEFORE computers? • DIAMOND: EXPLAIN keyframes help make animation easier. • DIAMOND: EXPLAIN how 3 -D animation is produced, mention wireframes and textures? • PLATINUM: Research how animation is being used in Virtual reality? Try and find how you can “feel” picking things up in VR.

WRITTEN NEATLY ON PAPER • TITLE: MP 3 compression • DIAMOND: What type of files does MP 3 compress? • DIAMOND: EXPLAIN what compression is. • DIAMOND: EXPLAIN the three ways MP 3 compresses files?

WRITTEN NEATLY ON PAPER • TITLE: MAKING TEA FLOWCHART • DIAMOND: COPY into your organiser the flowchart. Copy that diagram on to PAPER • DIAMOND: Write the words below into the diagram • DIAMOND: 1. START, 2. STOP, 3. MAKE TEA, 4. HAS WATER BOILED, 5. FILL KETTLE WITH WATER, 6. SWITCH ON POWER

WRITTEN NEATLY ON PAPER • TITLE: Decomposition and abstraction • DIAMOND: Explain what decomposition is? • DIAMOND: EXPLAIN what abstraction is? HELP: http: //www. bbc. co. uk/education CLICK ON KS 3 > COMPUTING

WRITTEN NEATLY ON PAPER • TITLE: Pattern recognition and algorithms • DIAMOND: Explain what Pattern recognition is? • DIAMOND: EXPLAIN what algorithms are? HELP: http: //www. bbc. co. uk/education CLICK ON KS 3 > COMPUTER SCIENCE

WRITTEN NEATLY ON PAPER • TITLE: Pseudocode • DIAMOND: Explain what Pseudo code is? • DIAMOND: Name the SIX common Pseudo-codes? • PLATINUM: Can you write pseudo code to show how. HELP: http: //www. bbc. co. uk/education CLICK ON KS 3 > COMPUTER SCIENCE

WRITTEN NEATLY ON PAPER • TITLE: BOOLEAN LOGIC • • DIAMOND: Explain the logic of a NOT gate DIAMOND: Explain the logic of an AND gate DIAMOND: Explain the logic of an OR gate DIAMOND: Explain the logic of an XOR gate • PLATINUM: What is a logic gate ANIMATION: http: //www. bbc. co. uk/education/guides/zc 4 bb 9 q/revision/2 CLICK ON KS 3 > COMPUTER SCIENCE> BOOLEAN

WRITTEN NEATLY ON PAPER • TITLE: BOOLEAN GATES • DIAMOND: NOT gate – Write a truth table for it INPUT A OUTPUT P • DIAMOND: AND gate – Write a truth table for it INPUTS A B OUTPUT P

WRITTEN NEATLY ON PAPER • TITLE: BOOLEAN GATES 2 • DIAMOND: OR gate – Write a truth table for it INPUT A B OUTPUT P • DIAMOND: AND and NOT gates – Write a truth table for it OUTPUT INPUTS A B R OUTPUT P

WRITTEN NEATLY ON PAPER • TITLE: CENTRAL PROCESSING UNIT • DIAMOND: What is a CPU? What does it do? • DIAMOND: Explain the fetch-execute cycle • PLATINUM: Explain the ALU

WRITTEN NEATLY ON PAPER • TITLE: ARRAY VARIABLES • DIAMOND: In your own words explain what an ARRAY is? • DIAMOND: Why would we use an array? • PLATINUM: How could we cycle through an array? Which programming construct could we use?

WRITTEN NEATLY ON PAPER • TITLE: EVALUATING SOLUTIONS • DIAMOND: Why is it important to evaluate a computer solution? • DIAMOND: One reason is to check the solution is EFFICIENT. Look at the flow chart below on how to get ingredients for a cake. Draw a more efficient flow chart.

WRITTEN NEATLY ON PAPER • TITLE: TESTING OUR PROGRAM • DIAMOND: In your own words, what is ALPHA testing? Why is it important? • DIAMOND: In your own words, what is BETA testing? Why is it important?

WRITTEN NEATLY ON PAPER • TITLE: Units of binary • DIAMOND: Research online and answer the following • A nibble = how many bits? • A byte = how many bits? • A Kilobyte = how many bytes? • A megabyte = how many Kilobytes? • A Gigabyte = how many Megabytes? • A Terabyte = how many Gigabytes?

WRITTEN NEATLY ON PAPER • TITLE: CPU clock speed • DIAMOND: Research online what CPU clock speed is. EXPLAIN IT! • Q 1: What is the clock speed of a PS 4 (2015)? • Q 2: What is the clock speed of a PS 1 (2000)? • Q 3: What is the clock speed of a Sega Mega drive (1990 s)? • Q 4: What is the clock speed of the Commodore 64 (1980 s)? • Q 5: What is the clock speed of the ZX 81 (1970 s/80 s)? • Q 6: What is the clock speed of the Atari 2600 (1970 s)?