Enhancement Day - Computer Scenarios: Group 8 Special Needs

WWW: We managed to remove all parts of the computer and place back correctly. 
EBI: Complete powerpoint and make handouts.

An introduction to Pseudocode - workbook

 

 

Task 1

 

TASK 1 = How do you get Minion Stuart to draw the square? What is the sequence of actions to move?

1	Forward 100
2	Turn right 90 degrees
3	Forward 100
4	Turn right 90 degrees
5	Forward 100
6	Turn right 90 degrees
7	Forward 100
8	Turn right 90 degrees

 

You have written the algorithm to show the list of instructions and you have written it in pseudocode = numbered list of instructions.

 

 

Task 2

 

 

Can you write the Pseudocode (the sequence of actions) to move Minion Stuart through the squares to collect the bananas?

Hint : Remember to pick up the bananas not just go over them

You need to write the list of instructions in remembering to number the actions

Extension – Can you add a ‘question to say if the minion reaches a banana?

Move right 2 squares

Pick up banana

Move right 1 square

Move down 1 square

Pick up banana

Move left 2 square

Pick up banana

Move left 1 square

Move down 1 square

Move right 2 squares

Pick up bananas

Move right 1 square

Move down 1 square

Move left 3 squares

Pick up bananas

 

Task 3

 

Can you tell me in your own words what pseudo code is?

Pseudocode is complicated programming written in english

 

Please complete the following self-assessment:

Question	Found Task Easy	Completed OK	Found Task Hard
Wrote a series of actions to make a square	ü
Wrote the pseudocode to move Minion Stuart around collecting bananas	ü

 

 

Level	Descriptor	Tick
3	Plan a sequence of instructions and present the sequence in a list	ü
4	Think through the algorithm and use pseudocode to plan this out allowing the final format to be read easily before programming	ü

 

 

 

 

Storage Devices - quiz

Storage Devices

1. List of some computing devices that are available on today’s market. For each one explain the main storage device/method used.

    

iPhone
Playstation 3
Macbook
Laptop
HDTV

2. Complete the table below.

 

Device	Capacity	Speed of access	Portable?	Durable?
USB Memory Stick	2GB - 64GB	Fast	Yes	Sort of/Yes
HDD - Hard Disk Drive	2TB	Fast	Internal - No  External - Yes	No
CD	700 MiB	Slow	Yes	No
DVD	47GB	Slow	Yes	Sort of/Yes
Memory Card	2 - 32 GB	Fast	Yes	Yes
SSD - Solid State Drive	4TB	Very Fast	Internal - No  External -Yes	No

 

3. The invention and increased use of cloud computing has allowed people to transfer a large bulk of their storage to an online solution. Discuss and compare the benefits and drawbacks of using local storage versus cloud storage.

 

Benefits:  Cloud - Infinate power and storage

                 Local - Limited power and storage

 

Drawbacks: Cloud - Anyome can hack into your account because it is on the internet

                    Local - You have control of your storage

 

4. Suggest an appropriate storage device for each of the following applications.

-   Store a high definition movie

   

    Blue-Ray   

 

-   Distribute some software that you’ve written
   

    CD

- Transfer GCSE Media coursework between home and school
   
     USB Memory Stick

 

-  Storage area on a college network

     

    Hard Drive  

 

5. Describe two factors that should be considered when selecting a suitable storage medium to use in a given situation.

    
    how much space is needed
    the price of the storage device

 

6. Name one device that makes use of solid state memory storage.

   
    RAM
      

7. Describe one benefit of using a magnetic storage device like a HDD compared to a

solid state device, such as an SSD for storing files on a network.

   HDD is less expensive than an SDD

 

Fetch - Execute - Cycle Quiz

Fetch - Execute - Cycle



Questions

1(a) What do the initials CPU stand for?

 - Central Processing Unit

(b) List three components of the CPU.

 - Registers, ALU, Memory

(c) In relation to computer architecture, what are buses?
- They transport information

 

2) Describe the function of the following in the fetch-execute cycle.

(a) Program counter

- is a register that holds the next instruction to be executed in the Memory

(b) The address bus

- A collection of wires connecting the CPU with main memory that is used to identify particular locations in main memory.

(c) The data bus
- In computer architecture, a bus is a communication system that transfers data between components inside a computer, or between computers.

(d) The decoder

- A decoder is a device which does the reverse operation of an instruction

(e) The Arthmetic and Logic Unit

- In digital electronics, an arithmetic logic unit is a digital circuit that performs integer arithmetic and logical operations. The ALU is a fundamental building block of the central processing unit of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers.