National 5 Computing Science

Can anyone tell me all I need to know about the processor for National 5

Can anyone tell me all I need to know about the processor for National 5

Thanks Ross

Ross, do you know that negative decimal to binary thing? I think it's called Two's Compliment. Do you think one will come up because it's always been a positive decimal number to binary question in the past.

2's Compliment is introduced at Higher Ethan. N5 only deals with positive integers.

Good luck tomorrow guys.

Really ? Why the hell did our teacher teach us it haha

Thanks dude, good luck to you too

Could someone give me a description of what an array is and string?

This may look silly, but how do you identify which is which in a programming code?

What's the difference between a compiler and interpreter??

Interpreter:
- Each line of the program must be translated before it can be run (therefore program loads slower)
- Requires more RAM
- Errors can be quickly identified

Compiler:
- Translates the whole program at once into machine code
- Once translated the machine code is saved therefore can be run over and over again
- Program runs much faster as no translation is done at execution time
- The program will not run at all until the program is completely free of syntax errors

Basically if u see a question which asks you to name the data structure, it will always be an array because that's the only data structure we are taught at N5!!

But one thing to always remember is that those questions are normally worth 2 marks so to get both you need to say : "array of strings" or "array of reals" etc.

Can anyone tell me all I need to know about the processor for National 5

Whats an array or reals ?

Real Numbers ? does the include decimal numbers

Whats an array or reals ?

Real Numbers ? does the include decimal numbers

How I remember the answers to these sorts of questions :

- if you see the word "location" in the question you are automatically thinking of the address bus
- if you see the word "transfer" in the question you are automatically thinking of the data bus
- if you see the word "calculation" or "comparison" in the question you are automatically thinking of the ALU

hope that helps you!

Real numbers are non whole numbers and yeah they are decimals..

Can anyone bring a copy of the paper please?

Thank you so much !

Do any of you know what Carbon footprint is ?

Could someone reply?



It's the amount of greenhouse gases used by each person.