VOCABULARY PRACTICE SECTION 3. 1. Fill in the blanks with the correct units of memory. 1
1. Fill in the blanks with the correct units of memory.
| 1. One ……. represents one character. 2. One ……. represents 1024 characters (about a small page of text). 3. One ……. represents about one million characters (about the text of a small book). | 
|
4. One ……. represents about 1 000 000 000 characters (about 1000 books).
5. One ……. represents about 1 000 000 000 000 characters (about one million books in a big library).
2. The table gives some prefixes commonly used in computer science. Knowing the meaning of these prefixes will help you understand new words.
| Prefix | Meaning | Examples |
| deci- hexadeci- kilo- mega- giga- mini- micro- bi- tri- multi- mono- | ten sixteen one thousand (1,000) (1,024 in binary: 2¹º) 210) large; one million very large; one thousand million small very small two three many one | decimal, decimalize, decibel hexadecimal kilocycle, kilogram(me), kilowatt megahertz, megalith, megaton gigabyte, gigahertz minibus, minimum, minimize microfilm, microphone, microwave bidirectional, bidimensional, binary tripartite, tricycle, trilingual multi-racial, multi-user; multitasking monologue, monolingual |
Explain these expressions, taking into account the prefixes and root word.
Example: the binary system - The binary system is a notation which uses two digits, 0 and 1.
| a minicomputer a microcomputer the decimal system | the hexadecimal system a multi-user configuration a bidimensional chessboard a tricycle | a monochrome computer display a CPU with 256 MB of RAM a document of 3 kilobytes |
3. Complete these sentences by inserting a unit of memory.
- A ……. is the smallest unit of information in a computer that must be either 0 or 1. Eight of these make a …….
- A ……. is approximately one million bytes.
- One of the largest units of memory is a ……. – equivalent to all the books in a large library.
- A DVD-RW can usually store 4.7 ……. of data.
- A ……. is around 1000 bytes.
Дата добавления: 2015-07-30; просмотров: 1503;