Tham khảo tài liệu 'tiếng anh chuyên ngành công nghệ thông tin part 8', công nghệ thông tin, tin học văn phòng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Answer key 4 A computer system is easier to use if you have a computer mouse. The mouse is a very quick way to move around on a screen. Making the same movements with the arrow keys on the keyboard takes much longer. The mouse also issues instructions to the computer very quickly. You just point and click to choose options select items on the screen load a program etc. Mice are so widely used in graphics applications because they can do things that are difficult if not impossible to do with keyboard keys such as moving or changing images. Most graphics programs require a mouse. B 3. a V. Language work Describing function This task provides practice in these structures. It is two-stage Ss must first find the correct match then link object and function. They can do this individually. A Item B Function 1 RAM 2 processor 3 mouse 4 clock 5 floppy drive 6 monitor 7 keyboard 8 DVD-ROM drive 9 cache g. holds data read or written to it by the processor. j. controls all the operations in a computer. a. controls the cursor. i. controls the timing of signals in the computer. e. reads and writes to removable magnetic disks. c. displays the output from a computer on a screen. b. inputs data through keys like a typewriter. d. reads DVD-ROM. h. provides extremely fast access for sections of a program and its data. 10 ROM f. holds instructions which are needed to start up the computer. Sample answer 1. RAM holds data read or written to it by the processor. The function of RAM is to hold data read or written to it by the processor. Topic 7 I. Scanners the eyes of your computer Possible answers 1 A scanner is a machine that takes a picture of a piece of paper - containing text or illustrations - and displays the image on the computer screen for editing. 182 Answer key 2 A color scanner operates by using rotating lamps which have red green and blue filters. The software combines the separate images into a single color. Scanners can be a real help in reading information .
