1) __________is the brain of the computer a) ALU b) CPU c) SU d) Operating system 2) CPU stands for a) Central Performance Unit b) Control Processing Unit c) Common Processing Unit d) Central Processing Unit 3) The main components of CPU is, a) ALU, Control Unit, Operating System b) ALU, Control Unit, Memory register c) Control Unit, Memory register, Operating System d) DVD and CD 4) Mathematical and logical functions are performed in, a) ALU b) Control Unit c) Memory register d) Operating system 5) __________temporarily retains data in the CPU a) Control Unit b) Operating system c) ALU d) Memory registers 6) __________ performs all the controls of the computer system a) ALU b) Control Unit c) Memory registers d) Operating System 7) Which electronic components are used in First Generation Computers? a) transistors b) vacuum tubes c) integrated circuits d) microprocessor  8) Which electronic components are used in Second Generation Computers? a) transistors b) vacuum tubes c) microprocessor d) integrated circuits 9) Which electronic components are used in Third Generation Computers? a) vacuum tubes b) transistors c) integrated circuits d) microprocessor 10) Which electronic components are used in Fourth Generation Computers? a) integrated circuits b) microprocessor c) vacuum tubes d) transistors 11) ENIAC Computer belongs to __________ a) First generation computers b) Second generation computers c) Third generation computers d) Fourth generation computers 12) What is execution speed of first generation computers? a) mile second b) micro second c) Nano second d) MIPS

Grade 7- CPU

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