english for user computers - tiếng anh cho người sử dụng vi tính: phần 2

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english for user computers - tiếng anh cho người sử dụng vi tính: phần 2 211 Exercise 3 Giving a definition Complete the following table by referring back to the appropriate units and paragraphs as indicated in the table. Hoàn chỉnh bảng sau đây bằng cách tham khảo bài đọc và đoạn văn thích hợp được nêu trong bảng. 1 UNIT [PARA] 1 TERM GROUP CHARACTERISTICS 1 [2] computers • 2 [5] silicon • 3 [1] electronically processed by computers 5 [4] turnkey systems 6 [2] can simulate, or imitate different measurements, by electric means 7 [1] semiconductor device 9 [5] ALU 10 [3] bi-Stable devices 1 11 i l l expresses as quantities of K 212 ANSWER KEY 1 Main idea Câu 1 và 3 không phải ý chính, cả hai chỉ trình bày các chi tiết của lịch sử pháỉ triển bộ nhớ, không nêu rõ các loại bộ nhớ khác nhau. 2 Understanding the passage 1. T 2. T 3. F - Semiconductor or chip memory was developed after core memory and before the bubble memory. 4. T 5. T 6. T 7. F - A chip is a piece of silicon used in transistors and computers. 8. T 9. T 10. F - Bubble memories are not expensive, consume little power, arc small in size and are highly reliable. More research is needed in this field though. 3 Locating information 1.//. 6 - 9 3 ./.5 5 ./.2 1 7 .//.6 -8 2 .//.2 1 - 2 3 4 . / / . 3 6 - 37 6. //. 43 - 44 8. II. 35 - 36 4 Contextual reference 1. information 5. memory capacity of millions of bits 9. film 2. intersection 6. development 10. bubbles 3. core 7. chips 4. cores 8. chip 5 Understanding words 1. mentioned 4. retaining 7. passed through 10. consume 2. respective 5. suitable 8. reduced 3. advances 6. e i t h e r ... or 9. croo,;' r' 213 6 Word forms 1. a. alterations b. alter c. altered 2. a. electricity b. electric c. electrical 3. a. reduced b. reduction 4. a. creative b. creation c. created Content review TYPE DEVELOPED SI7.F COMPOSITION MEMORY CAPACITY large grid o f vertical 80,000 bits core 1950s and horizontal wires with small ferrite ring at intersection 2. integrated millions chip early 1970s tiny circuits on non - metallic element 3. late 1970s extremely thin film over greater than bubble tiny metallic alloys existing 8 Focus review Focus G Time sequence PARA TIME SEQUENCE MARKER INFORMATION [2] The first computer had memories made up a kind o f grid o f fine vertical and horizontal wires [2] early computer had a capacity o f around 80,000 bits [2] whereas now it is not surprising to hear about computers with a memory capacity o f millions o f bits [2] Throughout the 1950s, 160s and core memory dominated the up to the mid ‘70s market [3] In the 1970s there was further development which revolutionized the computer field 214 Focus I Adding information 1. further 2. Moreover 3. Another FOCUS J Giving an explanation or a definition Exercise 1 1. A^om puter^is a machine with an i that operate switches or magnetize tiny metal cores. (Unit I) 2. A n^bacus)is a bead frame in which the beads are moved from left to right. (Unit 2) 3. (TnpuT) is the^information presented to the computer. (Unit 3) 4. The termCS o m p u ¿¿^includes those parts of hardware in which and other data manipulations are performed, and the high-speed interval memory in which data and calculations and stoi is. (Unit 3) 5. A^sy stem ^is a good mixture of integrated parts useful whole. (Unit .5) 6 . L^rge computer sy ...