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Electrical Engineering and Computer Science
EECS 1520
John Hofbauer

Name: , (last name) (first name) Student Number: Registered Section (if not this section): Instructor: Prof. Kemeny York University Faculty of Pure and Applied Science Department of Computer Science COSC1520.03 Introduction to Computer Use I Section B – Test 2 st Friday November 30 , 2006 Instructions: 1. This is an in class examination, therefore examination rules are in effect 2. Fill in the box at the top of this page, and print your name at the top of all other pages. 3. Answer ALL questions, in the space provided. 4. Time allowed is 45 minutes. 5. Use of calculators is NOT allowed. 6. There are 7 pages with 5 parts (A to E). Please count the pages and questions. Question Value Mark A. 9 B. 12 C. 6 D. 12 E. 11 Total: 1 Part A Circle the letter of the most correct answer. 1. Which of the following would contain data that is being manipulated by the CPU? a. a cell in RAM b. a hard disk sector or track c. a cell in cache memory d. a general purpose register e. the program counter register 2. Pipelining increases processor speed by a. very little b. a factor of 2 to 3 c. exactly a factor of 3 d. more than a factor of 3 e. a factor of 3 if it is a RISC architecture or 6 if it is CISC 3. Use of a microprogram in a CISC architecture a. increases the complexity of circuits on the chip b. decreases the complexity of circuits on the chip c. creates an elaborate instruction set using a simpler set d. allows a computer program to be simpler by having parts of it pre-written e. b. and c. 4 . Which of the following contains the address of the next instruction to be executed? a. a cell in RAM b. a hard disk sector or track c. a cell in cache memory d. a general purpose register e. the program counter register 5. A process switch is carried out by which part of the operating system? a. shell or user interface b. file manager c. memory manager d. scheduler e. dispatcher 6. Spooling output to disk rather than sending it directly to a printer eliminates which of the conditions for deadlock? a. competition for resources b. resources requested on a partial basis c. once allocated a resource cannot be forcefully retrieved 7. Timesharing increases throughput only a. if the CPU can execute instructions from more than one program in parallel (i.e. at the same time) b. if the programs running are using the same data c. if each program can be completed in sequence one after the other d. if the CPU is idle at times while waiting for peripheral devices to complete tasks e. it doesn't increase throughput, it increases CPU speed 2 8. Which of the following characteristics is permitted in a program that can execute in interactive processing mode, but is not permitted in batch mode: a. may obtain input data from mass storage b. may consist only of arithmetic/logic and control types of machine instructions. c. all data must be in main memory. d. may obtain data directly from the user e. b. and c. 9. The interrupt signal is generated by which part of the op
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