Numeric And Alphanumeric Assignment

Numeric And Alphanumeric Assignment

[P 1. Explain using examples how numeric and alphanumeric data can be coded within a computer system

How to Answer

  • What is numeric data? E.g. Decimal, Floating point, Octal
  • What is alphanumeric data? E.g. Hexadecimal
  • What language does the computer understand? Explain what binary is?
  • What is character encoding? Give examples e.g. ASCII, Unicode
  • Give an example of how a text can be encoded by ASCII and then give the binary equivalent

P2. Explain using examples how different types of data can be converted and stored in computer system

How to Answer

  • Explain how an image is represented? E.g. pixels
  • Explain the importance of file formats e.g. JPEG, PING
  • Explain how audio is represented? E.g. sample rate
  • Explain
  • Explain how audio and images are converted to binary
  • Explain how video is represented on the computer.

Useful Links

P3. Convert numeric data between different number systems including floating point

How to Answer

  • Convert from decimal to binary (Use a number of your choice)
  • Convert from binary to decimal (Use different number)
  • Convert from Decimal to hexadecimal (Use different number)
  • Hexadecimal to decimal (Use different number)
  • Floating point to binary (Use different number) e.g. 5.75 to binary
  • Binary to floating point (Use different number) e.g. 10111011.011 to decimal

Note: You cannot pass without showing the steps for achieving the answer

Example: Convert 78 to binary

78R
2390
2191
291
241
220
210
201

Numeric And Alphanumeric Assignment

The above table shows the steps for converting from decimal to binary. This works by dividing the decimal number by 2 and keeping the remainder. The answer should be read from the bottom to the top. Therefore, the answer is 00100111 

P 4. Carry out Boolean logic operations ( start the assignment from here DAVID)

How to Answer

  • Draw a Boolean logic gates diagram that shows all six operators
    • OR, AND, NOT, AND, NOR, XOR (See example below)
  • Create truth tables showing the results for each of the combinations
  • Give a brief explanation of the diagram and table

Useful Link freehold help. coxcomb. co .UK/education/guides/zc4 bb9q/revision/3

HTTP://creationism/app/?temp ID= &login_type=demo (For drawing logic gates)

P5. Illustrate the key computer system components and how they interact

How to Answer

  • Include an image of On – Humane Architecture and explain the components
  • Explain input devices, CPU and its components (Control Unit, ALU and Registers), the memory unit (RAM) and then output devices. Give an example showing how these components work.
  • Include images of each individual component

Useful Links

HTTP://WWW .computer science .geese. guru/theory/con-humane-architecture

P 6. Explain the different types of memory that can be attached to a processor

How to answer

  • Explain the different types of registers (e.g. MAR,MDR, AC, PC, CIR)
  • Explain Cache memory and the types (e.g. L1, L2, l3)
  • Explain the RAM and different types (E.g. DDRAM)
  • Explain ROM (Read only-memory) and types
  • Explain the hard drive and its function

P7. Explain how polling and interrupts are used to allow communication between processor and peripherals

How to answer

  • Explain the concept of polling with real world examples
  • Explain the concept of interrupts with real world examples
  • Explain how both of them are used for communication between the processor and peripherals 

P8. Compare Reduced Instruction Set Computer (RISC) chips and Complex Instruction Set Computer (CISC) chips.

How to Answer

  • Explain RISC and how it works
  • Explain CISC and how it works
  • Compare both of them based on different criteria

Useful Link: HTTP://WWW. vb c.co .UK/education/guides/Zomba mpg/revision/3

P 9. Illustrate the use of the different processor registers in the fetch execute cycle

How to Answer

  • Explain the steps involved in the fetch-execute cycle

Useful link: HTTP://WWW. BBC. co .UK/education/guides/WSW 8d2p/revision/3