Computer Final revision for prep 1
first term
Using computer better in: repetitive task, automated task, complicated finances ,dangerous
situations and salaries.
Using people better in: creation or thinking activities and meeting or interactive with human
Data types: number, letters, sounds, images and movies.
Hardware: CPU (processor), Memory "RAM and ROM", Input devices ,Output devices
and storage devices that can be seen and touch
Input devices:key board,mouse,joystick,touchpad,trackball,graphics
pad,scanner,mic, light pen and trackball
Output devices: monitor, printer "laser and disk jet", plotter and speakers
1
Computer Final revision for prep 1
first term
Measuring units:
Storage devices: ( Floppy disk, ZIP disk, JAZ disk, Tape disk, Hard disk, CD
,DVD, Blu Ray and flashcards) each one has driver except hard disk.
Software: group of instructions that is given to computer to do task.
Data is the new (raw) material for information, it doesn’t have any meaning until it is
processed and turned into something useful.
2
Computer Final revision for prep 1
first term
Information: when data will be accepted, it’s changed to Information after
processing.
Processor (CPU) is the brain and it's divided into CU (Control unit) to decode data
and ALU (Arithmetic Logic Unit) to execute commands.
Memory :RAM is volatile or temporarily memory and ROM that contains the
information of the computer.
Network: It consists of two computers or more are connected together
The internet is the largest computer network in the world
The World Wide Web “WWW” is just a part of the internet; it consists of millions of
electronic documents that are written by HTML
URL is the address of any website; the web sites may contain a web page or more
The browser is a program is used to connect to Internet such as Internet Explorer
Internet services: E-mail, Browsing WWW, Search, Multimedia
Windows
windows is an operating system
The basic icons on the desktop are: My computer, My documents and Recycle bin
also windows has some programs such as WordPad, calculator, paint and address
book that can be opened from start, all program then accessories
3
Computer Final revision for prep 1
first term
Through task bar you can arrange the opened windows cascade, vertically and
horizontally.
You can use search about file or folder, people and computer in windows.
You can install new printer, any hardware and add or remove program from control
panel.
Using help and support from start menu to answer any question that you have .
Questions: put (√) or (x):
1. Computer is used in the activities requiring thought or creativity.
( )
2. Computers are used to record patient records and to perform medical researches.(  )
3. Distant learning "E- learning" means that the computer explains the subjects for the
students via internet. ( )
4. The computer can store different types of data.
( )
5. Computer viruses develop continuously and they become more dangerous than before
( )
6. CPU is called the (thinking part) in the computer.
( )
7. When the electricity disconnects while running the computer, RAM save the data in it and
nothing is lost. ( )
8. Memory unit is divided into RAM and ROM.()
9. The network is a connection of two or more computers that should be in the same place
( )
10. The computer is useful in dangerous situations. ()
11. The data can be letters only.
()
12. The Human ware refers to the staff that develops software only.(  )
13. The software is a set of instructions that order the computer to perform tasks.()
14. The monitor is considered hardware.
()
15. The man is better than the computer in repetitive tasks.()
16. A complete computer system is formed of two parts Hardware and Software only.(
17. The computer manages the borrowing of books inside libraries.
()
18. A computer used in mathematical calculation better than man.
()
19. A computer used for sending messages to others by E-mail at home.()
20.
A computer is not used in shops.
()
21. A computer can be used to make a scientific research.()
22. A computer processes data & gives us information.
()
23. A computer is used in hospitals and libraries.
()
4
)
Computer Final revision for prep 1
first term
24. A computer has better performance when the more RAM used. (  )
25. The Internet is the largest computer network. ( )
26. We can search for people in the Address Book. ()
27. Word program is one of Operating system()
28. We use computer in education only(  )
29. Computer is used better in: Repetitive tasks, automated tasks, math calculations and
dangerous situations(  )
30. Jazz disk from the storage devices ()
31. We can search for Hardware (computers) on the network.
()
32. Hard ware: a group of instructions that order the computer to do task(  )
33. (PDA) is one of computer types(  )
34. PDF tool is the link between computer and user()
35. RAM can keep Data when the electric current is cut (  )
36. Security is a tool of Internet Safety ( )
37. Data types: number, letters only(  )
Write one word for each of the following:
1.
Computer designed by IBM in 1981."PC"
2.
Computer that can run by electricity or batteries. "laptop"
3.
Big and expensive Computer that can support many users at the same time and is used
in organizations and institutes. "mainframe"
4.
A group of programs that may cause a problem for the computer. "virus"
5.
Is the raw material for information and consists of raw facts that can be organized
into files. "data"
6.
They create the programs that we use. "programmers"
7.
Is one or more web page that related to each other "website"
8.
Programs used to view web pages on the World Wide Web. "browser"
9.
A big collection of electronic documents stored on computers called "servers".
"WWW"
10.
It is the brain of the computer. "CPU or processor"
11.
The Operating System used by PC. "windows"
12.
Type of memory and when the computer is turned off, all data is lost. "RAM"
13.
Letters, numbers, pictures, and sound. "data"
14.
A set of instructions that order the computer to perform tasks "software"
15.
An input unit used for playing games. "joystick"
16.
An expensive printer. "laser"
17.
Small and cheap printers. "disk jet"
5
Computer Final revision for prep 1
first term
18.
The biggest storage unit in computer. " Hard disk"
19.
Formed of web browser, connection to ISP, Server. "Internet"
Complete
a) ……Information……..are processed data and can be used in the decision making.
b) Computer processor is known as …brain……..
c) ………touchpad…….is used as input unites and found in laptops that it controls the mouse
indicator.
d) 1 GB equals……1024………MB
Choose the correct answer:
1. The monitor is an example of (Hardware - software).
2. (Hacking – viruses – both) of the problems that should avoid on the Internet
3. Hardware is the (touchable – untouchable) parts.
4. A monitor is an example of (hardware - software).
5. The person responsible of developing software is called (Producer - programmer).
6. The software (can – can't) be touched.
7. (Macintosh - Mainframe) computer has different operating system than PC.
8. The capacity of PDA is (smaller – the same – bigger) than PC.
9. A (Server – Macintosh) is a central computer attached to a network.
10. The Macintosh computer costs (more – less) than PC.
11. A Complete Computer System consists of (hardware– software – both)
12. The (RAM – ROM) is the computer temporary storage place.
13. A Byte is formed of (8 – 9) bits.
14. Gigabyte equals (1024 – 1042 – 1000) Megabyte.
15. Light pen, Touchpad and trackball are (Input devices – output devices)
16. (Fire wall – phishing) is a program that prevents viruses and worms.
17. Gigabyte=1024(Kilo byte – Megabyte – Byte)
18. JAZ disk, Tape drive and CD are (Storage devices- output devices)
(Applications – Utility programs) are programs used in different fields such as playing
or writing.
19.
6