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6. If the display system time and date is wrong, you can reset it using a. Write b. Calendar c. Write file d. Control panel 7. Memory a. Is a device that performs a sequence of operations specified by instructions in memory b. Is the device where information is stored c. Is a sequence of instructions d. Is typically characterized by interactive processing and time-slicing of the CPU's time to allow quick response to each user 8. Which of the following are loaded into main memory when the computer is booted? a. Internal command instructions b. External command instructions c. Utility programs d. Word processing instructions 9. The processor's High-speed working storage areas that store only a few bytes are called? a. Decoders b. Registers c. Units d. Modules 10. Which of the following is driving force of a computer? a. Computer clock b. Input device c. Output device d. Memory 11. The CPU includes all of the following components excepts: a. Primary storage b. Register c. Control unit d. ALU 12. All of the following are performed by the control unit except: a. Executing an instruction b. Storing data into registers c. Fetching an instruction from memory d. Determining the meaning of an instruction 13. Access time to RAM is usually measured in a. Nanosecond b. Pico second c. Millisecond d. Microsecond 14. Which of the following factors does not affect computer processing speed? a. RAM b. Register c. Clock speed d. Keyboard size 15. Firewalls are to protect against a. Virus attacks b. Fire attacks c. Data driven attacks d. Unauthorized attacks 16. transforms the message into a format that cannot be read by hackers. a. Encryption b. Decryption