OCR Computer Science 1.1 and 1.2 Revision

Why does a laptop need secondary storage? (1/2)

• To store data

• To backup files to move to another computer

• files and software for future use

• To storage programs that are currently running

Which tasks are the memory manager responsible for (as a part of the Operating System)

• Swapping applications and data between RAM and virtual memory

• Allocated sections of memory to applications

• Communicating with peripheral devices connected to the computer

• Allows the end user to control the computer effectively

The types of storage are listed below from fastest to slowest. Which order is correct?

• Solid State, Optical, Magnetic

• Optical, Magnetic, Solid State

• Magnetic, Optical, Solid State

• Solid State, Magnetic, Optical

Why is a Hard Disk Drive (HDD) not very portable?

• It has moving parts

• It is too large

• It will break if you touch it

• It is too small

Which is the largest of these data capacities?

• 2048 MB

• 2 GB

• 2050 MB

• 100,000 KB

The types of storage are listed below from the most reliable to the least reliable. Which order is correct?

• Solid State, Optical, Magnetic

• Optical, Magnetic, Solid State

• Magnetic, Optical, Solid State

• Solid State, Magnetic, Optical

Question 19 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?

• Doubled
• Quadrupled
• Eight Times Faster
• Sixteen Times Faster

What component holds the address of the next instruction

• Memory Address Register
• Memory Data Register
• Program Counter
• Accumulator

The main purpose of a computer is to process data. The processing stage takes place within the...

• Keyboard
• RAM
• CPU
• Printer

...is a computer program that contains the set of instructions needed to tell the hardware what to do

• Hardware

• Input device

• Processing

• Software