OCR GCSE Computer Science - 1.2 - Memory

This is volatile storage (1-3)

• RAM
• Secondary Storage
• ROM
• Hard Disk

This contains the BIOS (Boot-up program) (3-4)

• ROM
• Secondary Storage
• Hard Disk
• RAM

You can write data more than once to this device (1-3)

• DVD+R
• CD ROM
• ROM
• RAM

Which statement is true? (1-3)

• ROM contains the operating system
• RAM is part of the hard disk
• RAM stores programs / data used by the CPU
• ROM is volatile

A gaming computer is “thrashing” the disk. Why? (5-7)

• The processor is short of RAM
• The game uses high resolution graphics
• The screen uses too many colours
• The game takes up too much space

Which statement is true? (1-3)

• ROM is non volatile
• RAM has a slow access time relative to other storage devices
• RAM holds the BIOS
• RAM can be Static (SRAM) or Dynamic (DRAM)

What is firmware? (3-5)

• A program in cache
• Any hardware
• Data in RAM
• A program in ROM

What is the difference between SRAM and DRAM?

• DRAM is physically bigger
• DRAM needs its data to be refreshed otherwise it loses it
• DRAM is faster
• SRAM needs its data to be refreshed otherwise it loses it

What is the fastest data storage in a computer (6-9)

• Registers
• RAM
• ROM
• HDD

How does data/instructions move between the CPU and RAM?

• Address Bus
• Address and Data Buses
• ROM