IGCSE ICT classified

Describe the differences between ROM and RAM and explain what they are used for

• RAM:

  • Random Access Memory

  • Stores running applications

  • Temporary

  • Volatile

• Any input device

  Any output device

  Any external storage devices

• Motherboard

  Random Access Memory (RAM)

  Read-Only-Memory (ROM)

  Video Card

• ROM:

  • Read Only Memory

  • Stores the BIOS and the Boot-up

  • Permanent

  • Non-volatile

Give three features of a graphical user interface

• Commands difficult to edit once entered

• Don't have to type in commands

• Have to learn a lot of commands

• Easier to change or edit action

• Don't have to learn or be familiar with a lot of commands

Rom is Volatile

• True

• False

ROM is used to store the startup instruction of a computer

• True

• False

The data in ROM is easier to change then that in RAM

• True

• Maybe

• False

ROM is used to store the data the user is currently working on

• True

• I don't Know

• Maybe

• False

Define the term Hardware. Name its two types and give three examples for each type

Discuss three advantages and three disadvantages of using tablets compared to using laptops.

Discuss the advantages of using RFID technology.

• They take more accurate readings than humans

• They take more accurate readings than humans

• Readings are continuous

• Smaller angle of viewing compared to CRT monitor

How the RFID technology works.

• Microchip to store and process data

• Lower power consumption

• Generates less heat

• Antenna/Aerial to receive and transmit data