Unit II

Speak about processor and memory and other parts your computer consist of.

Find sentences with the following words in the text.

PROCESOR AND MEMORY

The central processing unit (CPU) and memory are located on chips inside the system unit. The processor is a main chip of the PC in which all calculations are made. The processor consists of cells in which the data can vary. Internal cells of the processor are named as registers.

Key parameters of the processor: an operating voltage, a digit capacity, working clock rate, coefficient of an internal clock multiplying, a size of the cache memory.

The processor is connected to other devices of a computer groups of the explorers called as buses. Main 3 buses are the address bus, the data bus, the bus of commands.

The address bus is connected to it the processor for copying data from a cell in one of registers. On the data bus there is a copying data from the RAM in registers of the processor and back. The bus of commands is commands act from the RAM, from areas where programs are stored.

The CPU is the brain of your computer. This is the place where your computer interprets and processes information. You may have heard computer memory referred to as RAM. The term RAM stands for random access memory. The instructions that your computer gets and the information your computer processes are kept in RAM during your work session.

Your computer’s RAM is not a permanent storage place for information; it is active only when your computer is on. When you turn off your computer, information is deleted from memory. To avoid losing your work, remember to save it on a disk, a permanent storage device, before turning off your computer.

Computer memory is measured in kilobytes or megabytes of information. (A byte is the amount of storage needed to hold one character). One kilobyte equals 1024 bytes, and one megabyte equals 1,048,576 bytes. Software requires a minimum amount of random access memory to work properly. You can usually find memory requirements on software packaging, or you can ask your software dealer.

4. Translate the following word-combinations:

central processing unit disk drive

random access memory basic computer system

permanent storage place software packaging

computer processor operating system

permanent storage device software dealer

memory requirements to work properly

Тranslate the sentences:

is made up make up are located

may have heard are kept is deleted

is measured

1. Read and learn the words:

display -

screen -экран; вывод информации на экран

to send back -возвращать

program(me) -программа

to display -показывать; отображать

appropriate -соответствующий

to fit -встраивать

inside -внутри

outside -снаружи

to determine -определять

screen resolution -разрешение экрана

colour = color – цвет

to colour -раскрашивать

to enable -давать возможность

design -проект; чертеж

to design – проектировать

to add -добавлять; прибавлять; складывать

addition -добавление; сложение

to type -печатать; набирать

to print -

Дата добавления: 2014-12-27