Direction: clockwise/counterclockwise direction; data direction; forward/backward direction; inverse / reverse direction; negative direction; positive direction.
Level: access level; application level; data level; difficulty level; error level; function level; hardware level; high level; input/output level; performance level; program level; security level; software level.
Processor: control processor; data processor; error processor; general-purpose processor; special-purpose processor; image processor; language processor; mail processor; message processor; numeric processor; peripheral processor; text processor.
Switch: to switch between programs; to switch between windows; to switch disks; to switch on/ off; to switch over.
Step: final step; procedure step; program step; programming step; step by step; one step at a time; to step down/out; to step up; to take steps.
Exercise 3. .
1. Programs and data to be processed must be in the ________ memory.
(internal, external, secondary)
2. The control unit ___ instructions from the program.
(sends, changes, obtains)
3. The read out command is passed from the ____register to the ____ register.
(instruction, address, storage)
4. CPU is designed to ____ and to ___ basic instructions for the computer.
(control, consist, carry out)
5. CU and AlU consist of electronic circuits with millions of ____.
(sensors, switches, servers)
Exercise 4. . .
Verbs: relate, employ, insert, perform, remove, operate, show, interpret, select, issue, use, receive, cause, print, make, compute, connect, execute, take away, require, act, convert, carry out, demand, permit, demonstrate, choose, transmit, type, store, get, calculate, proceed, continue, keep, allow.
Nouns: response, unit, component, computation, storage, gate, amount, element, memory, instruction, device, equipment, connection, circuit, order, command, information, relation, quantity, answer, calculation, number, data.
Adjectives: broad, complete, each, appropriate, every, basic, essential, digital, original, full, wide, initial, major, large, numerical, common, necessary, usual, important, general, great.
GRAMMAR EXERCISES
Exercise 1. , .
1. Data being accessed randomly, semiconductor memories are called random access memory (RAM). 2. Primary storage having similarity to a function of the human brain, the storage is also called memory. 3. Computer system architecture being organized around the primary storage unit, all instructions must pass through it. 4. Computer system architecture is organized around the primary storage unit, all instructions passing through it. 5. For this reason most computer systems use electronic memory for primary storage, electromechanical memory being used for secondary storage. 6. The CPU controls the operation of the entire system, commands being issued to other parts of the system.7. Being not visible software makes possible the effective operation of computer system. 8. Being introduced in the beginning of this century the flash memory cards will replace the floppy disks and even the disks. 9. The control unit interpreting instructions is one of the important parts of any computer system.
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Exercise 2. .
Models: A joystick being connected to your computer, this icon lets you set up the joystick. => If a joystick is connected to your computer, this icon lets you set up the joystick.
1.Your program refusing to save a file, the disk is possibly full. 2. Windows being started, a dialog box prompts you to enter your name and password. 3. The program already running, you can use the standard File½Open command to open a document. 4. You can copy the text, the Copy command leaving the selected text in your document. 5. Satellite PC promising 400KBs data transfers, the modem speed will triple.
Exercise 2. .
1. , .
2. .
3. .
4. .
5. , , .
Exercise 3. Tell about CPU (8-10 sentences)
LESSON V
