Unit 1 (1.1 part 1)

Clues

• A basic program that governs the video card’s operations and provides the instructions that allow the computer and software to interface with the card (4, 2, 5, 4)
• A hardware virtualisation technique that allows multiple guest operating systems to run on a single host system at the same time, the guest shares the hardware of the host; it is also known as Virtual Machine Manager (VMM) (4, 2, 10)
• A panel or filter placed over a display to make it difficult or impossible for someone to see the screen without being directly in front of the display (4, 2, 7, 6)
• A pointing device in which the pointer is controlled by finger movement on the pad and tapping to simulate a left button mouse click; they also have buttons at the bottom which act as left and right mouse buttons (4, 2, 1, 8)
• A pointing device that is similar to a mouse except that the ball is on top of it and the user controls the pointer on the screen by rotating it with the hand (4, 2, 1, 11)
• Connected directly to the computer, sounds can be inputted and then manipulated- the input sound is converted to analogue and then to digital, the computer’s sound card does this automatically; used in voice recognition software (4, 3, 11)
• Hardware devices that allow data to be inputted into a computer, examples include keyboards and barcode readers (4, 3, 5, 7)
• In 128mb or 256mb chunks and can be DDR1, DDR2 or DDR3 with DDR3 being most expensive but faster; the rule is that the more memory a machine has, the faster it can store and process information (3, 2, 3, 4, 8)
• Pointer is controlled by gripping the stick and buttons make selections, another button on the top is often used for gaming purposes; they are used for simulators (4, 2, 1, 8)
• The main component inside all computers and is a base for all other components to connect to, complemented by the CPU, all processes link through it (it holds the memory RAM and ROM) to move information to and from the CPU (4, 2, 3, 11)