Across
- 3. a small handheld device which is moved across a mat or flat surface to move the cursor on a computer screen
- 6. a computer program with a graphical user interface, used to navigate the World Wide Web
- 7. a combined device for modulation and demodulation
- 8. a global computer network providing a variety of information and communication facilities, consisting of interconnected network
- 9. a piece of code which is capable of copying itself and might result in corrupting the system or destroying data
Down
- 1. the programs and other operating information used by a computer
- 2. a rigid non-removable magnetic disk with a large data storage capacity
- 4. a device that scans documents and converts them into digital data
- 5. a machine for printing text or pictures, especially one linked to a computer
- 6. start (a computer) and put it into a state of readiness for operation