RinGkaSan pEmbaLAjarAn hArI isNiN (11.julAi.2011)

Refleksi

setelah mempelajari beberapa tajuk mengenai komputer,kini kami diterangkan oleh Puan Zakiah mengenai sistem komputer pula..terdapat bnyak persoalan mengenai komputer yang dpt diterangknan disini..
antaranya persoalan mengenai komputer adalah seperti berikut:

1) What is computer literacy??
- knowledge and understanding of computer and their uses..
-computer are everywhere
  
2)How is a computer defined??
-electronic device operating under the control of instruction stored in its own memory

3)What is the information processing cycle??
-input
-processer
-output
-storage
-communication

4)What is and input device??
-hardware use to enter data
-box like case containing electronic component used to process data

5)What is storage??
-hold data,instruction and information for future use.

-storage media
 ~ physical material on which data,instructions and information are store.
 ~ portable,thin memory card used in digital camera and handheld computer

-compact disc
 ~ flat,round,portable metal disc.
 ~ CD-ROM
 ~ CD-RW
 ~ DVD-ROM
 ~ DVD+RW

6)What make a computer powerful??
-storage
-reliability and consistency
-speed
-accuracy
-comunication

-Network 
~ collection of computer and device connected together.

-Communication media 
~ cable
~ telephone lines 
~ cellular radio
~ satellites

-Communication device
~ enables a connection between computers and modem

-Component motherboard
~ CPU (central processing unit)
~ also called a processor
~ carries out instruction that tell computer what to do. 

-Memory
~ temporary holding place for data and instruction.

-Input (accept data)
~ raw fact,figure and symbols

-information
~ data that is organized meaningful and useful

-output
~ produces and stores results