CS77_Quizzes

Chapter 1 1. Many desktop computers utilize the peripheral component interconnect bus standard in which the system augments its main bus with dedicated I/O buses using expansion slots. 2. The organization that sets standards for photographic film and the pitch of screw threads, in addition to matters concerning computers, is the ISO 3. The first general-purpose programmable electronic computer was the ENIAC 4. We study computer organization to become familiar with how circuits and signals collaborate to create working computer systems. 5. There are 2 50 kilobytes in an exabyte. 6. The first supercomputer, the CDC 6600, had a memory size of 128 kilowords. 7. Infrastructure as a Service (IaaS) replaces the digital logic level through machine levels of the computer hierarchy with an Internet-based infrastructure. 8. There are 2 10 gigabytes in a terabyte. 9. Computer architecture encompasses all physical aspects of computer systems. FALSE 10. There are 1 billion microseconds in a second. FALSE 11. Hot plugging means the same thing as Plug-and-Play. FALSE 12. A control unit consists of a central processing unit (CPU) with an arithmetic logic unit (ALU) and registers. FALSE 13. Expressed as a power of two, there are 2 10 kilobytes in a megabyte. 14. Expressed as a power of two, there are 2 20 megabytes in a terabyte. 15. The statement, “The cost of capital equipment to build semiconductors will double every four years,” is known as Rock’s Law 16. A kilobyte represents 2 10 ? 17. Computers designed using the Harvard architecture have two buses: one for data and one for instructions. 18. At the most basic level, a computer is a device consisting of three pieces: A processor, an I/O mechanism, and a memory Chapter 2 1. If the most significant bit of a signed binary number is 1, that number is Negative (-) 2. Signed-magnitude and two's complement both have two representations for zero. FALSE 3. The general idea of Booth’s algorithm is to increase the speed of addition when there are consecutive zeroes or ones in the multiplier. FALSE 4. Excess-M notation uses unsigned integers to express negative integers. TRUE 5. A biased floating-point exponent uses some manner of Excess-M representation. TRUE 6. The range of decimal values that can be expressed in 7 bits using binary two's complement is -32 to 31. FALSE 7. The largest positive unsigned decimal number that can be expressed in 6 bits is 63. TRUE