ict notes-Questions and Answers Graded A+

ict notes-Questions and Answers Graded A+ digital video camera - ANSWER-A video camera is a camera used for electronic motion picture. it also stores video clips as digital files. on cameras you can take still photos. you need a high definition camera to take HD movies HD - ANSWER-HD stands for high definition and means that many more pixels are used per unit area than SD or standard definition flash memory - ANSWER-a device that can be slotted into a mobile phone camera or computer and it is used to save data. It does not need any power to keep the data stored witch means the card can be taken from device to device. pixels - ANSWER-millions of tiny dots that make up an image. The resolution of an image is made up by the number of pixels the higher number of pixels the better quality the picture is. pay-per view services - ANSWER-you pay a subscription and then you pay an agreed amount for each film/tv show you watch. interactive services - ANSWER-An interactive system is one in which the user is able to make request to the system and the system is able to react to those requests music and sound - ANSWER-music can be obtained by a number of ict sources such as, digital tv, mobile phones, cds and the internet mega pixel - ANSWER-a mega pixel is one million pixels benefits of encoding data - ANSWER-- less computer memory used - faster to enter data once codes are known - fewer errors made - validation of code is easier examples of encoded data - ANSWER-- gender : m & f - yes/no : y or n - school effort grades : 1, 2, 3, 4, 5 - airports : CWL (cardiff) advantages of storing data on a computer - ANSWER-- less physical storage required - data can be stored securely - data can be accessed quickly & from various locations