Unit 1 Assignment 1: Computer Basics Review

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Luis Perez NT1210 June 21, 2014 Chapter 1 Unit 1 Assignment 1: Computer Basics Review Multiple-Choice Answers 1-20 1. C. Represents one binary digit 2. B. Megabyte 3. C. 64 bits per quadruple word 4. A. Used for short-term memory, E. Is Installed 5. A. The CPU tells the RAM which address holds the data that the CPU wants to read. 6. C. Character set 7. D. The binary equivalent of decimal 123456789 8. A. An actuator arm 9. A. Keeps data in order, B. Provides a convenient way to name a set of date for easier operations like copying and moving, C. Names give users an easy way to reference the data 10. A. By reading the file system’s directory information, which is stored on the storage device. 11. B. Using a magnetic Charge 12. B. Used for long-term memory, D. Connects to the CPU over a bus using a cable. 13. A. Actuator arm, C. Platters 14. A. RAM, D. USB flash drive 15. A. Keyboard map 16. D. By closing an electrical circuit connected to the key is pressed 17. B. Two dimensions: movement as two numbers: one of the direction of the X axis of an X,Y graph and the other on the Y axis 18. C. Input of commands that control the computer 19. C. The screen using more than a million pixels, D 1024 is the number of items top to the bottom in a grid on the screen. 20. A. Information that identifies each individual pixel on the computer display, B. A binary code for each pixel. Defining it’s color. Acronyms Table RAM- Random Access Memory OS- Operation System CPU- Central Processing Unit KB-kilobytes MB-Megabytes GB-Gigabytes TB- Terabytes USB- Universal Serial Bus HDD- Hard Disk Drive ODD- Optical Disk Drive I/O-Input Output DPI- Dots Per

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