1) What is called the brain of the computer? a) ROM b) CPU c) ALU 2) What are three main parts of CPU? a) ALU,CU,Memory Registers b) ALU,ROM,Memory Registers c) CU,ALU,RAM 3) What are two parts of the main memory ? a) RAM,USB b) CD,DVD c) ROM,RAM 4) What is the memory that can be directly accessed by the CPU? a) Primary Memory b) Control Unit c) Secondary Memory 5) What is called volatile memory? a) ROM b) ALU c) RAM 6) What is the smaller in capasity than other memory? a) Random Access Memory b) Read Only Memory c) Cache Memory 7) What is called External Storage? a) Secondary Memory b) Cache Memory c) Read Only Memory 8) What are three main parts of Secondary Memory? a) Magnetig media devices,Optical media devices,Solid state devices b) Memory Card,Twisted pair,Solid state devices c) Magnetic media devices,Solid state devices,Microwaves 9) What is commonly used to store data and information? a) Memory Card b) Hard Disk Drive c) Magnetic Tape 10) What is used only to read,written data and instructions? a) CD-ROM b) CD-RW c) DVD-R

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