O LEVEL- IT TOOLS & BUSINESS SYSTEM
TRICKS TO CRACK FIRST PAPER:
M1-R4: IT TOOLS & BUSINESS SYSTEMS
SOME IMPORTANT TOPICS WHICH FREQUENTLY ASKED EVERY YEAR:--
Difference between follwings---
SPAM , VIRUS , MALWARE, INTERPRETER, COMPILER , IMPACT ,NON IMPACT PRINTER , RAM , ROM ,DDL , DML ,SYSTEM SOFWARE , APPLICATION SOFTWARE , PRIMARY KEY , FOREIGN KEY ,MICR , OCR , MULTROCESSING , MULTIPROGRAMMING , CACHE AND REGISTER MEMORY TEMPLATE AND WIZARD----
Sr. No.
Multiprocessing
Multiprogramming
1
Multiprocessing
refers to processing of multiple processes at same time by multiple CPUs.
Multiprogramming keeps several programs in main memory at
the same time and execute them concurrently utilizing single CPU.
2
It
utilizes multiple CPUs.
It utilizes single CPU.
3
It
permits parallel processing.
Context switching takes place.
4
Less
time taken to process the jobs.
More Time taken to process the jobs.
5
It
facilitates much efficient utilization of devices of the computer system.
Less efficient than multiprocessing.
6
Usually
more expensive.
Such systems are less expensive.
Difference
Between Cache and Register
is
that Memory cache helps speed the processes of the computer because it
stores frequently used instructions and data. While registers are also a part
of a computer processor and holding one small piece of data in Processor. A
register may hold a piece of data, like a storage address and computer
instruction.
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Difference between follwings---
SPAM , VIRUS , MALWARE, INTERPRETER, COMPILER , IMPACT ,NON IMPACT PRINTER , RAM , ROM ,DDL , DML ,SYSTEM SOFWARE , APPLICATION SOFTWARE , PRIMARY KEY , FOREIGN KEY ,MICR , OCR , MULTROCESSING , MULTIPROGRAMMING , CACHE AND REGISTER MEMORY TEMPLATE AND WIZARD----
Difference
Between Cache and Register
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|
Sr. No.
|
Multiprocessing
|
Multiprogramming
|
|
1
|
Multiprocessing
refers to processing of multiple processes at same time by multiple CPUs.
|
Multiprogramming keeps several programs in main memory at
the same time and execute them concurrently utilizing single CPU.
|
|
2
|
It
utilizes multiple CPUs.
|
It utilizes single CPU.
|
|
3
|
It
permits parallel processing.
|
Context switching takes place.
|
|
4
|
Less
time taken to process the jobs.
|
More Time taken to process the jobs.
|
|
5
|
It
facilitates much efficient utilization of devices of the computer system.
|
Less efficient than multiprocessing.
|
|
6
|
Usually
more expensive.
|
Such systems are less expensive.
|
is
that Memory cache helps speed the processes of the computer because it
stores frequently used instructions and data. While registers are also a part
of a computer processor and holding one small piece of data in Processor. A
register may hold a piece of data, like a storage address and computer
instruction.
CACHE
Most
of today’s computers improve processing times with cache (pronounced cash). Two
types of cache are memory cache and disk cache. Memory cache helps speed the processes of the computer because it stores
frequently used instructions and data. Most personal computers
today have at least two types of memory cache: L1 cache and L2 cache.
REGISTER
Registers are also a part of a computer processor
and holding one small piece of data in Processor. A register
may hold a piece of data, like a storage address and computer instruction. Some
instructions specify registers as part of the instruction. E.g it may be
specified that an instruction of two registers can be placed together on a
specified register. There must be a large register enough so
that it can hold instructions. For example, in a 32-Bit instruction computer, a register must be 32 bits in
length. But in many computers, there are smaller registers like half registers
for shorter instructions. Registers may have arbitrary or numbers names which
depends on the processor designs and language rules.
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