- •Unit 8 storage
- •II. Find the synonyms to the following words:
- •III. Read the text again and answer the following questions:
- •I. Read the text and complete it with the phrases below.
- •Main memory: ram and rom
- •II. So, there are three types of memory used by computers: ram, rom and secondary storage. Look through this list of features and decide which type of memory they refer to.
- •III. Put the statements into the right order.
- •IV. Read the text and find the following:
- •Optical discs and drives
- •V. Read the text again and make notes about the features of cDs, dvDs and Blu-ray discs.
- •VI. In pairs, look at the products in the computer catalogue and choose the most suitable device for the purposes (1-6). Give reasons for your choices.
- •Iomega portable hard drive
- •I. Flash memory is used in many handheld devices. Read the descriptions (1-6) of some of them.
- •II. Look at the title of the text. Why is it a suitable title for an article about flash memory? Read the first paragraph of the text to find out.
- •III. Read the whole text and answer these questions.
- •Memory in a flash!
- •I. Read the description of magnetic storage devices and find the following:
- •I. Read the text and decide whether these sentences are true or false.
- •II. Match these words (1-5) with the definitions (a-e).
- •I. Fill in the blanks with the suitable words.
- •II. Match the terms with their definitions.
- •IV. Match terms with their definitions:
- •V. Complete these sentences with words from the box.
- •VI. Say it one word.
II. Match these words (1-5) with the definitions (a-e).
1. formatted 2. directory 3. read/write head 4. head crash 5. back up |
a) a file system that defines the structure for keeping track of the file; b) the part of a drive that reads and records data on a disk; c) to make a copy of data or software in case the original disk is damaged; d) initialized; when the tracks and sectors on magnetic disks are set; e) a serious disk malfunction; when the read/write head touches the rotating disk. |
Test yourself:
I. Fill in the blanks with the suitable words.
1. The time required for the computer to locate and transfer data in the storage device is called the data … time.
a) sequence; b) access; c) value
2. … memories have no moving parts.
a) electronic; b) mechanical; c) electromechanical
3. Magnetic … were the main elements used for primary memory in digital computers for many years.
a) cores; b) tapes; c) disks
4. … is more commonly used for memory at present.
a) bipolar semiconductor; b) MOS; c) field-effect transistor
5. Magnetic disks constitute the … storage media.
a) internal; b) primary; c)secondary
6. Data are stored in … codes in primary as well as in secondary storage.
a) digital; b) binary; c) numerical
7. Data access time is … in electronic memories than that in electromechanical memories.
a) longer; b) much longer; c) shorter
8. Electronic memories have …capacities for data storage.
a) more; b) larger; c) less
II. Match the terms with their definitions.
1. Primary 2. Secondary 3. Magnetic disc 4. Binary codes 5. RAM 6. Bit 7. Byte 8. ROM 9. Floppy 10. Capacity |
a) one of the performance characteristics of storage measured in binary digits; b) memory that has random access to the information; c) combination of units of information; d) the main method of secondary storage performing both sequential and random storage; e) area of memory where protected programs can be read from but not written on; f) a fixed number of consecutive bits representing a character; g) the principal flexible second storage circuit element; h) part of memory having lower speed but greater capacity; i) a unit of information or binary digit; j) the most expensive part of memory having the least capacity and the fastest access time. |
III. Find English equivalents to the following words: пристрої, що запам’ятовують; носії пам’яті; первинні ЗП; вторинні ЗП; час доступу; вартість ЗП; діапазон місткості пам’яті; архівна пам’ять; рухомі механічні частини; магнітні стрічки, що обертаються, і диски; з цих причин; твердо тілі пристрої; магнітні сердечники; напівпровідники; оперативне ЗП; апаратне забезпечення вторинної пам’яті; звукозапис; намагнічені крапки; представляти зашифровану комбінацію одиниць інформації; на відміну від магнітних стрічок; послідовна і довільна обробка; пристрої з рухомою і фіксованою головкою; задовольняти потреби; гнучкий диск.