CS101 Assignment No. 1 Solution
Tuesday, October 26, 2010 Posted In CS and IT Edit ThisAnother Solution:
Computer Description Cost Performance Reliability Size Installed In Numbers
Super Computer Very Costly in Millions Good (Pak Automatic Energy) Reliable but less then main frame More than 25 Acres Land Required These are in few numbers
Main Frame Costly but less than super computer Very Good (used in PIA, etc) More Reliable than super computer Less size than super computer These are in more numbers than super computer
Personal Computers Less costly than main frame Very Very Good (used in Offices, business org. etc) More Reliable than main frame Small size than main frame These are in large numbers
PDA’s Costly than Personal Computers Exception Performance(used in multipurpose) More Reliable than Personal Computer Very small size than personal computer These are also available in large numbers
Question 2 (Marks=5)
Differentiate Between Static RAM and Dynamic RAM in Tabular form. ANY TWO Differences ( 2.5 2.5 = 5)
SRAM (static RAM). This type of memory maintains data in storage as long as it is powered. Because it is faster and more reliable and expensive than DRAM, SRAM is most often used as cache memory. Earlier forms of SRAM were classified as Async or Sync RAM if they were synchronized with the system clock. The most common type of SRAM today is pipeline burst SRAM, which can operate at higher bus speeds.
DRAM (dynamic RAM). This type of RAM retains its data by being continuously rewritten every few milliseconds. Like SRAM, the data in storage is volatile, meaning it is lost when the system is not powered. DRAM is the most common type of expandable company memory in workstations and servers today, but there are several different types of DRAM.
Computer Description Cost Performance Realiablity Size Installed In Numbers Super Computer Very Costly in Millions Good (Pak Automic Energy) Reliable but less then main frame More than 25 Acres Land Required These are in few numbers Main Frame Costly but less than super computer Very Good (used in PIA, etc) More Reliable than super computer Less size than super computer These are in more numbers than super computer Personal Computers Less costly than main frame Very Very Good (used in Offices, business org. etc) More Reilable than main frame Small size than main frame These are in large numbers PDA’s Costly than Personal Computers Exception Performance(used in multipurpose)More Reliable than Personal Computer Very small size than personal computer These are also available in large numbers Q1) Differentiate Between Static RAM and Dynamic RAM in Tabular form. ANY TWO Differences ( 2.5 + 2.5 = 5)SRAM (static RAM). This type of memory maintains data in storage as long as it is powered. Because it is faster and more reliable and expensive than DRAM, SRAM is most often used as cache memory. Earlier forms of SRAM were classified as Async or Sync RAM if they were synchronized with the system clock. The most common type of SRAM today is pipeline burst SRAM, which can operate at higher bus speeds. DRAM (dynamic RAM). This type of RAM retains its data by being continuously rewritten every few milliseconds. Like SRAM, the data in storage is volatile, meaning it is lost when the system is not powered. DRAM is the most common type of expandable company memory in workstations and servers today, but there are several different types of DRAM. Another Solution:- Static RAM (SRAM) 1. 4 times more expensive 2. Very low access time 3. Can store ¼ as much 4. Information stored on RS flip-flops 5. No need for refreshing Dynamic RAM (DRAM) 1. Low cost 2. Consumes less power 3. Can store 4 times as much 4. Information stored on FET transistors 5. Needs to be refreshed Another Solution:- STATIC RAM vs DYNAMIC RAM Firstly we anxious with static RAM 1)it does not loose signal strength. 2)no refreshing. 3)They made of transistors. Where as Dynamic RAM 1)looses its signal 1 becomes 0 2)periodic refreshing of memory is needed. 3)These are mostly made of capacitors. Fill in the Comparison Table with appropriate answers expressing 5 key differences of :-
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