computing revision

computing revision

1. CRIBS

   • character- a single letter, number or symbol.
   • Real- any number with a decimal point used for calculations.
   • Integer- a whole number used for calculations.
   • Boolean - stores 2 possible values (true/false/yes/no.)
   • String- can contain numbers, letters and symbols

2. RAM- stores the programs, parts of the operating system and files that are currently being used.m

3. Hard drive-stores all the programs , operating systems and files for the computer system to run.

4. CPU- fetches,decodes and executes data and/ or instructions.