Week two Flashcards
More about Computers and how they work
IT basics
Computers accept input, ____,______.
Processes data and stores data
IT basics
Computers are ____ devices
Multipurpose
It basics
Computers produces ____ according to a____.
Output& series of stored instructions
memory and processes:
Microprocessors perform task based on (blank)?
Instruction sets
What are Instruction sets?
A set of really simple instructions
Microprocessors do not speak human language
Programming language (Java, Python) have to be (blank) for the microprocessor to understand the input.
converted into machine language
CPU is a microproccesor and stands for Central Processing unit.
What makes up a CPU
ALU, Registers and Control Unit
What does ALU stand for?
arithmetic logic unit
What does ALU do?
Performs arithemtic operations, compares and makes logical descisions.
What is a Regesiter?
It holds data to be processed and stores single values.
What does the Control Unit do?
It fetches instructions
What are the 4 stages of the instruction cycle?
- Fetch instructions
- Interpret the instructions
- Execute the instructions
- Go to next instruction
Can be found on the CPU
What is CPU cache?
It is specalised high-speed memory allowing the microproccesor/cpu to acess data faster by bypassing the RAM.
Memory
What does RAM stand for?
Random acess memory
The higher the RAM= Increased speace for data to be held = Run more progammes= Faster and can multitask better
memory
What does ROM stand for?
Read only memeory
Storage
What are the 2 main componets of storage?
Storage device and Storage medium
What are the 4 types of storag techs?
- Magnetic Storage Tech
- Optical Storage Tech
- Solid State tech
- Remote and Cloud Storage
Device Options
What are the three types of Enterprise computers?
- Supercomputer
- Mainframe
- Servers
