CUSTOMER_CODE
SMUDE
DIVISION_CODE
SMUDE
EVENT_CODE
SMUAPR15
ASSESSMENT_CODE BT0062_SMUAPR15
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
3770
QUESTION_TEXT
Explain compiler, interpreter, loader, linker and facilities offered by
operating system.
SCHEME OF
EVALUATION
Compiler: Function of complier is to translate HLL instruction into
machine code. It translate entire set of instructions from program and
produces error list at the end. When all errors are removed from
program, it creates object code. Execution time is less when complier
is used. (2 marks)
Interpreter: It translates program line by line or statement by
statement. It requires less main memory. Each time program is
executed, every line/statement is checked for syntax error and then
translated to equivalent machine code. Execution time is more when
interpreter is used.
(2 marks)
Loader: Basic function of loader are* Loading specified program into main memory.
* To assign strong area and load time to a loaded program.
* Making a program execute properly for its load time storage area.
* Linking of programs with each other. (2 marks)
Linker: Linker are help in merging the individual program modules,
so that they can integrate with each other. Linkers are mainly used in
HLL to build the linkage of built-in-functions such as mathematical
functions, sqrt, sqr, sin, cos, etc.
There are mainly three types of linkers-linking leader, linkage editor
& dynamic linker. (2 marks)
Facilities offered by operating system: *It communicates with computer operator by means of console unit
or keyboard.
* It controls flow of jobs by loading and unloading of programs.
* It undertakes error diagnosis and recovery techniques in case of
error conditions.
*It allocates peripherals to programs and checks their availability.(2
marks)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
3773
QUESTION_TEXT
Explain router, DSP, modem and hub
Router (2.5 Marks)
DSP (2.5 Marks)
SCHEME OF EVALUATION
Modem (2.5 Marks)
Hub (2.5 Marks)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
72982
QUESTION_TEXT
Describe all the different output device which are most
popular.
SCHEME OF
EVALUATION
i.
ii.
iii.
iv.
v.
vi.
vii.
Monitor
Compact disk
Printer
Speaker
Head phones
Plotters
Projectors
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
72985
QUESTION_TEXT Explain the third generation and Fourth generation computers
SCHEME OF
EVALUATION
Third generation computers: The computers of third generations
were made up of IC (Integrated Circuits). Integrated circuits mean
incorporation of hundreds of transistors on a single silicon chip.
These were still smaller than the computers of second–generation
machines. Heat generated was also and they occupied less
space.
2M
Instead of punched cards and printouts, users interacted with third
generation computers through keyboards and monitors and interfaced
with an operating system, which allowed the device to run many
different applications at one time with a central program that
monitored the memory. Computers for the first time became
accessible to a mass audience because they were smaller and cheaper
than their predecessors. 2M
Fourth generation computers: These are the modern day
computers. The size started to go down with the improvement in the
integrated circuits. VLSI and ULSI ensured that millions of
components could be fit into a small chip. It reduced the size and
price of computers at the same time increasing the efficiency and
reliability.
2M
Due to the reduction of cost and the availability of the computers
power at a small place allowed everyday user to benefit. First came in
the minicomputers, which offered users different applications, the
most famous of these, the word processors and spread sheets, which
could be used by non–technical users.
2M
IN 1981, IBM introduced personal computers for home and office
use. Computer size kept on getting reduced during the years. It went
down from Desktop to Laptops to palmtops. Macintosh introduced
Graphic User Interface in which users didn’t have to type instructions
but could use mouse for the purpose. The continued improvement
allowed the networking of computers for the sharing of data. LAN
and WAN were potential benefits. Soon the internet and World Wide
Web appeared on the computer scene.
2M
QUESTION_TYPE DESCRIPTIVE_QUESTION
QUESTION_ID
118218
QUESTION_TEXT What is the use of monitor? Explain the monitor components.
Monitors are used to view the data on the computer. The
characteristics of monitor are very important for the system
performance since the quality of video will significantly affect the
computer system.
(2 marks)
SCHEME OF
EVALUATION
Components
Monitors consist of a picture tube abs electronic control circuit which
is used to transfer the signal to the screen.
Explain
(8 marks)
QUESTION_TYPE DESCRIPTIVE_QUESTION
QUESTION_ID
118220
QUESTION_TEXT Explain the various classifications of computers.
computers. (Unit No. 1, page No.12–14)
The various classifications of computers are:
SCHEME OF
EVALUATION
Personal computers: A microcomputer is the smallest general
purpose processing system. Function wise it is similar to any other
large system. Microcomputers are self–contained units and usually
designed for use by one person at a
time.
2M
Mini computers: IS medium sized computer that is more powerful
than a microcomputer. An important distinction between the two is
that a minicomputer is used usually to serve multiple users
simultaneously.
1M
Mainframe computers: Computers with large storage capacities and
very high speed of processing are known as mainframes. They support
large number of terminals for simultaneous use by a number of
users.
1M
Super computers: These have extremely large storage area and
computing speeds, which are many times faster than the above
discussed machines. These have more than one processor in it and
processing is carried out in parallel. The supercomputers used in
applications include large scale numerical problems in scientific and
engineering disciplines like weather forecasting, atomic research,
space research etc.
3M
Laptop/Palmtop computers: These are computers which are small in
size and weigh a few kgs. These computers can be carried from one
place to another place easily. The people who are always on the move
mostly use these. This has all the capabilities of a personal computer.
It has an LCD screen and has rechargeable batteries. Now, we can
even get computers which can be placed on the palm, hence the name
Palmtop computers.
3M