OCR GCSE Computer Science : 1.1 Computer Architecture

What doesn’t affect the performance of the computer

• Clock Speed

• Number of Cores

• The number of instructions in the program

• Cache Size

If the processing speed goes from 1GHZ to 4GHZ and the processor is changed from an 8 core to a dual core processor – what is the exact effect on the performance of the computer?

• The number of instructions executed per second quadruples

• The number of instructions executed per second doubles

• The number of instructions executed per second stays the same

• The number of instructions executed per second is halved

Firmware in which software and hardware are integrated on a circuit board is often used in what type of system?

• Point of Sales System

• Desktop System

• Embedded System

• Operating System

Which is an example of an Embedded System:

• PCs

• Washing Machine

• Laptops

• Tablets

Processors don’t do the following

• Operate in Hz

• Execute Data

• Execute Instructions

• Process Data

The part of a processor in which instructions are executed is known as?

• Core

• Centre

• Instruction Centre

• Execution

What acts as an intermediary between the processor and the Main Memory?

• Clock

• Cache

• Bus

• User

What is held in cache?

• All of the programming instructions

• Instructions that have been processed

• Commonly used instructions and data

• Data that hasn’t been used for a long time

Moore’s Law?

• The performance increase of computers would eventually halt in 2020

• That the number of cores on a processor would double every year

• Predicted that the number of transistors on a circuit board would double ever year

• Computers would be capable of thinking and learning for themselves by 2020

If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer?

• Quadrupled

• Eight Times faster

• Sixteen times faster

• Doubled