Which of the following sentences is (True) or (False):1. There are application programs that help users write their own programs using a programming language.

2. A computer does not always do whatever the instructions, or program, tell it to do.

3. The number of bits being transmitted at one time is dependent on the bus width.

4. Hard Disk Storage media are volatile.

5. Recordable optical discs can be written to, but the discs cannot be erased and reused.

6. The decode unit coordinates and controls the operations and activities taking place within the CPU.

7. Optical character recognition (OCR) is a technology confined primarily to the banking industry, where it is used to facilitate high-volume processing of checks.

8. Early computers required programs to be written in machine language.

9. The main circuit board inside the system unit is called the megaboard.

10. ROM (read-only memory), also called main memory, is used to store the essential parts of the operating system while the computer is running.

11. The control unit takes the instructions fetched by the prefetch unit and translates them into a form that can be understood by the control unit, ALU, and FPU.

12. With rewritable optical media, the laser permanently alters the disc surface.

13. Flash memory storage systems are not subject to mechanical failures like hard drive and optical disc systems, and are therefore more resistant to shock and vibration.

14. While the memory used for disk caching can be a designated portion of RAM, today’s hard drives typically use a disk cache consisting of memory chips located on a circuit board inside the hard drive case.

15. Many new personal computers come with a C drive partition ready to use for programs and data and another logical drive set up as a recovery partition.

16. Recordable optical discs can be written to, but the discs cannot be erased and reused.

17. When scanning, lower resolution is acceptable if the image is to be enlarged significantly or if only one part of the image is to be extracted and enlarged.

Arab Academy for Science & Technology College of Engineering & Technology - Cairo Computer Engineering DepartmentCourse Code: CC111 Course Title : Int. To ComputersExaminer : Prof. Dr. ALAA Abd El-Raheem AHMED.Spec. : First Year Students

The 7th week Exam Review Sheet 1 ( Chap 1 – 4) Reg. #: Name: Class:

18. CRT monitors use digital signals to display images, which allows for sharper images.

19. Each pixel on an LCD display emits light in the necessary color.

Choice the correct answer1. Computing technologies make it possible to have ____, traditional appliances with some type of built-in

computer or communications technology. a. design appliances c. home computersb. smart computers d. smart appliances

2. Two of the most common types of communications hardware are ____ and network adapters. a. ports c. monitorsb. slide rules d. modems

3. In addition to the four primary computer operations, today’s computers typically also perform ____ functions. a. calculations c. sortingb. communications d. programming

4. Integrated circuits incorporate many transistors and electronic circuits on a single tiny silicon chip, allowing ____ to be even smaller and more reliable than earlier computers. a. second-generation computers c. fourth-generation computersb. third-generation computers d. fifth-generation computers

5. What kind of computer would most likely fit Sarah’s needs? a. midrange server c. notebookb. embedded d. docking station

6. ____ consists of programs designed to allow people to perform specific tasks using a computer, such as creating letters, preparing budgets, and managing inventory. a. Cloud storage c. Java Scriptb. HTML d. Application software

7. A ____ is loosely defined as a very small device that has some built-in computing or Internet capability. a. mainframe computer c. mobile deviceb. midrange serverd. personal computer

8. RAID 0 uses disk ____, which spreads files over several disk drives. a. burning c. clusteringb. striping d. mirroring

9. Ultra-mobile PCs are also called ____. a. mini computers c. range computersb. handheld computers d. frame computers

10. ____ is typically free and provided by virtually all ISPs used with personal computers. a. Short Message mail c. Web-comb. Web-based e-mail d. Program-based e-mail

11. One online security problem is ____, in which someone else uses your identity, typically to purchase goods or services. a. identity duplication c. identity theftb. domain theft d. phishing

12. ____ consists of nonvolatile memory chips that can be used for storage by the computer or the user. a. RAM c. SDRAMb. Register d. Flash memory

13. The key element of the microprocessor is the ____—a device made of semiconductor material that acts like a switch controlling the flow of electrons inside a chip. a. processor c. chipbusb. transistor d. S-card

14. Each hard disk is divided into pie-shaped groups of ____. a. tracks c. filesb. clusters d. sectors

15. The recommended file system for computers running current versions of Windows is ____. a. FAT c. NTFSb. FAT32 d. FAT64

16. ____ optical discs can be recorded on, erased, and overwritten just like magnetic disks. a. Erasable c. Rewritableb. Rereadable d. Recordable

17. If Rodney wants to record music files onto a CD, he needs to make sure that his operating system has CD-____ capabilities. a. mirroring c. hybridb. burning d. striping

18. A(n) ____ uses charged liquid crystals located between two sheets of clear material to light up the appropriate pixels to form the image on the screen. a. organic light emitting diode (OLED) displayb. gas plasma displayc. digital television (DTV)d. liquid crystal display (LCD)

19. The ____ orders data and instructions from cache or RAM based on the task at hand. a. ALU c. control unitb. prefetch unit d. decode unit

20. ____ means that data can be retrieved directly from any location on the storage medium, in any order. a. Indirect access c. Sequential accessb. Random access d. Online access

21. The number of bits used to store color information about each pixel is called ____. a. bit depth c. pixel depthb. color concentration d. byte resolution

22. When buying a scanner, Stacey needs to make sure that the scanner has a high enough ____, typically measured in the number of dots per inch (dpi), for the business needs of the office. a. magnetic resolution c. optical resolutionb. image depth d. word spacing

23. ____ form images by spraying tiny drops of liquid ink onto the page, one printed line at a time. a. Laser printers c. Dot-matrix printersb. Ink-jet printers d. Line printers

Complete the following statements

1. The progression of input, processing, output, and storage is sometimes referred to as the ________ cycle or the information processing cycle.

2. _____________ technically an input or output operation, depending on which direction the information is going—is increasingly considered the fifth primary computer operation.

3. One common opinion is that fifth-generation computers will be based on _____________, allowing them to think, reason, and learn.

4. ___________ are computer professionals whose primary job responsibility is to write the programs that computers use.

5. The World Wide Web refers to one resource—a collection of documents called ___________ available through the Internet.

6. One of the most common methods for storing graphics data is in the form of a bitmap—a grid of hundreds of thousands of dots, called _________.

7. Text-based data is represented by fixed-length binary coding systems specifically developed for text-based data—namely, ASCII, EBCDIC, and _____________.

8. ___________ are collections of electronic circuits containing microscopic pathways along which electrical current can travel.

9. ____________ are locations on the motherboard into which expansion cards can be inserted to connect those cards to the motherboard.

10. _________________ are the connectors located on the exterior of the system unit that are used to connect external hardware devices.

11. The ____________ coordinates and controls the operations and activities taking place within the CPU, such as retrieving data and instructions and passing them on to the ALU or FPU for execution.

12. __________ are hard drives that use flash memory technology instead of magnetic technology to store data.

13. ___________ refers to using a storage device that is not connected directly to the user’s computer.

14. The objective of disk mirroring is to increase _____________.

15. Most mice today are optical mice or _________ mice that track movements with light.

16. __________ are commonly attached to point-of-sale equipment so that they can electronically record signatures used to authorize credit card purchases.

17. _________ are used in consumer kiosks, point-of-sale (POS) systems and are useful for on-the-job applications, such as in factories, where using a keyboard or mouse is otherwise impractical.

18. Some midrange servers consist of consist of a collection of individual compact, modular servers called ____________.

19. Because the output appears temporarily on a display device, it is sometimes referred to as __________.

20. One of the most common methods for storing graphics data is in the form of a bitmap—a grid of hundreds of thousands of dots, called ________________.

21. __________ displays form images by manipulating electronically charged chemicals or gases sandwiched between thin panes of glass or other transparent material.

Answer the following questions

Q Define the four primary operations of a computer.Q What does an output device do?Q Define the six categories into which computers are generally classified.Q Explain what a register is and how it is used.Q Explain the difference between multiprocessing and parallel processing.Q Of what does ROM (read-only memory) consist? What is one important difference between ROM and RAM (random access memory)?Q What are the different steps of the machine cycle? Q Explain the difference between multiprocessing and parallel processing.Q Discuss how storage media differ from RAM in terms of volatility.Q What term is used to refer to the total time a hard drive takes to read or write data, and what are the steps it requires?Q What does remote storage refer to? Describe some common types of remote storage.Q What is a smart card? Describe some common features and uses of smart cards.Q What kind of applications are holographic data storage systems suited for?Q What is a touch pad?Q Describe the common features and uses of portable scanners.Q How do digital cameras work? How do color and monochrome displays form colors?

Question: Which of the following sentences is (True) or (False):

1. Firewall is a software programs protected computer from hackers( ) 2. ROM is the volatile memory ( )3. ASCI I is a computer characters code ( )

4. Pixel is a smallest address represent image ( )5. BIOS has the basic input output primitive instructions of computer System. 6. Computers store all da ta such as text, images, audio, and video digitally ( )7. Hardware is any physical device, such as computer, disk drive, printer, modem, or

cable ( )8. USB (Universal Serial Bus) is used to connect computer with external devices as

printers, plotters, scanners , … etc. ( ).9. Window XP is an application program ( )10.MP3 compression makes audio files much smaller ( )11.Motherboard or system board : the main circuit board inside the system unit ( )12.Bus is an electronic path over which data can travel ( )13.Arithmetic/Logic Unit (ALU) perform arithmetic and logical operations ( )14.Information is the data that has been processed into an organized ( )15.Antivirus is a software programs protected computer from hackers( ) 16.Word is an application program ( )17.Images often stored as bitmap, a grid of hundreds of thousands of dots, called

pixels ( )18.Machine language: binary-based language for representing computer programs

the computer can execute directly ( )19.Motherboard or system board: the main circuit board inside the system unit ( ) 20.CPU performs the computer operations ( )21.BIOS has the basic input output primitive instructions of computer System. 22. Win 7 is an operating system ( ) 23.Computers store all da ta text, images, audio, and video as Characters ( )24.Hardware is operating system and application( )25.Games is application programs ( ) 26.USB (Universal Serial Bus) is used to connect with scanners only ( ).27.Data is collection of information ( )28.Mouse is a computer output device ( )29.Intrnet is a public Wide Area Network (WAN) ( )30.Firewall is a software programs protected computer from virus( ) 31.RAM is the nonvolatile memory ( )32.Expansion slot : a location on the motherboard into which expansion cards are inserted

( )

Question: Choice the correct answer

1- Sound Card is

a) System board. b) Motherboard. c) Add in card

2- Information stored in RAM is considered volatile, which means it is:

a) Stored permanently. b) Not held permanently, only temporarily.

3- Byte terminology used to

a) Express the size of documents and other files, programs, etc.b) Character code

4- Processing speed is measured in

a) Megahertz (MHz) or Gigahertz (GHz) b) Kb c) Hours

5- Optical storage media such as:

a) CDs and DVD b) Hard disk c) Floppy disk

6- Scanner is computer a. Output device b. Input device

7- Bit isa. single 1 or 0 b. is Byte

8- Microprocessor is referred to: a. System board. b. Motherboard.

c. Processor 9-Which of the following is strictly an output device? a. Trackball b. joystick c. handwriting recognition device d. printer 10- PC that has a single hard disk but six drives, labeled A, B, C, D, E, and F, has probably its hard disk: a. Sectored b. Partitioned c. Formatted d. Fragmented 11-Information stored in ROM is considered non volatile, which means it is: a. stored there permanently. b. not held permanently, only temporarily.

c. stored when the electricity is shut off.

Question :

Q Discuss the computer memories, RAM and ROM.

Q : What are the main components of CPU?

Q: Explain the difference between the Data and Information.

Q : What are the Storage Systems Characteristics?

Q: What are the Hard drive characteristics?

Q: How can you Improving the Performance of your computer system.

Q Discuss the keyboard key main groups.

Q What are the different types of scanner?

Q Discuss the special purpose printers.

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Q. What are the main functions of Operating System?

Q: Explain the computer system Utilities.

Q Discuss the new computer communication technology WiMax.

Q -Discuss the new computer technology BluRay.