Download 1 - Eastern Mediterranean University

Eastern Mediterranean University - Department of Mathematics
Comp201 – Computer Hardware and Architecture
MIDTERM EXAM #1
10/04/2007
Name Surname:
No:
Group: 1
PART 1: Short answer questions. (5 points each).
1. Many computer manufacturers offer a family of computer models all have basicly the same architecture.
Why the manufacturers need this?
COMPATIBILITY
2. Write down the name or the family name of the first commercial computer and explain briefly (short) by
giving any two basic properties?
IBM 700 AND IBM 7000. DESIGNED FOR SCIENTIFIC CALCULATIONS AND DESIGNED FOR
BUSINESS APPLICATIONS.
3. A computer system designer need only deal with a particular level of the system at a time. At each level
the designer should concern two important features. What are these features?
STRUCTURE AND FUNCTION
4. Write down the four basic functions that a computer can perform.
DATA PROCESSING, DATA STORAGE, DATA MOVEMENT AND CONTROL
5. What are the basic operations done by a computer?
DATA PROCESSING, DATA STORAGE, INPUT / OUTPUT AND DATA COMMUNICATION (BETWEEN
THE COMPONENTS).
QUESTIONS 4 AND 5 ARE SIMILAR!...
6. Explain how computers has been characterized through their evolutions?
INCREASING PROCESSOR SPEEDS, DECREASİNG COMPONENT SİZE, INCREASING MEMORY
SIZE AND INCREASING I/O CAPACITY AND SPEED OF INPUT OUTPUT UNITS.
7. Explain, what is microelectronics? What are the fundamental types of components in microelectronics?
MEANS SMALL ELECTRONICS WHİCH USES TWO FUNDAMENTAL TYPES OF COMPONENTS
CALLED GATES AND MEMORY CELLS TO MAKE A PERSONAL COMPUTER TO PERFORM
STORAGE, MOVEMENT, PROCESSING AND CONTROL FUNCTIONS.
8. Explain magnetic Core memory and Semiconductor memory.
MAGNETIC CORE MEMORY WAS FAST, EXPENSIVE, BULKY, AND USED DESTRUCTIVE
READOUT.
SEMICONDUCTOR MEMORY WAS ABOUT A SINGLE CORE SIZE, COULD HOLD 256 BITS OF
MEMORY, WAS NONDESTRUCTIVE, MUCH FASTER THAN CORE.
9. Write down the four major structural components of a CPU.
CONTROL UNIT, INTERCONNECTIONS, REGISTERS AND ALU.
10. Draw a diagram or write down the basic components(structural parts), to explain Von Neumann’s
computer.
CONTROL UNIT, INTERCONNECTIONS, REGISTERS AND ALU
11. Write down the basic programming approaches in computer systems.(Think about a computer system,
two major componets are the two programming approaches in computers. Write down them.)
HARDWIRED AND SOFTWARE PROGRAMMING APPROACHES.
12. Consider the components of a computer system. CPU is one of the components which exchanges data
with memory. Write down any 3 of these 5 components. (e.g. MAR: memory adress register which
specifies adress for next read or write)
MEMORY BUFFER REGISTERS, I/O REGISTERS, MEMORY MODULE, I/O BUFFER REGISTERS
AND I/O ADRESS REGISTER
PART 1: Multiple choice questions. (5 points each).
13. Which one of the followings is correct?
a) The evolution of computers is started by first generation with transistors.
b) The evolution of computers is started by first generation with vacuum tubes.
c) The evolution of computers is started by first generation with EDVAC.
d) None of the above is correct.
14. Which one of the followings is true(FALSE) for ENIAC computer? (TRUE ANY CASE!!!)
a) It was a digital and electronic machine.
b) It can be programmed easily.
c) It was a decimal machine.
d) All of the above are correct for ENIAC.
15. Which one of the followings is false for EDVAC computer?
a) Data and instructions are stored in a single chip.
b) This memory was addressable by location (no matter what type of data contained)
c) Execution was done in sequential order.
d) Stored Program concept was implemented already for ENIAC computer and this concept is
more advance in EDVAC computer.
16. In general a von Neumann machine had a total of 21 instructions. These instructions can be groupped.
Which of the followings is not one of these groups?
a) Data transfer
b) Unconditional/Conditional branch
c) Fractional operations.
d) Arithmetic
e) Address modify
17. Which one is wrong for IAS computer?
a) IAS computer is the prototype of a general purpose computer.
b) IAS computer had a total of 41 instructions.
c) IAS computers memory consists of 1000 storage locations.
d) Each number is represented by a sign bit and a 39 bit value.
18. Registers are defined as buffer registers, address register and instruction register. Which of the
followings is correct for a buffer register?
a) Contains a word in memory or is used to execute a word stored in memory.
b) Used to execute instructions one by one.
c) Contains a word in memory or is used to recieve a word form memory.
d) All of the above are correct.
19. What is a multiplexor?
a) central execution point
b) central termination point for data channels
c) recieving channel
d) high level proggrammin language.
20. A memory cell can store
a) One bit of data at a time
b) One byte of data at a time
c) One word of data at a tine
d) None of these are correct.