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What is Random access memory (RAM)
This is a volatile memory (i.e. contents are lost when computer is switched off). A user can write or delete data and read the contents. Before a program can be ran it should first be loaded into RAM that allows CPU to access the program. Battery-backed RAMs overcome data loss on switching power off though are outside the scope of these booklets.
(NOTE: For completeness, it's worth mentioning that two types of RAM exist termed as SRAM (static RAM) and DRAM (dynamic RAM) - SRAM doesn't need to be constantly refreshed to retain its memory unlike DRAM. Also consider that computers use cache which is a part of memory made from SRAM. Memory caching works as programs generally access the same data or instructions over and over again. By retaining as much information as possible in SRAM, computer operates more quickly (cache is generally termed level 1, 2 or 3 (termed L1, L2 or L3)).
Explain about the viruses in detail Note 1: Viruses don't just infect computers, they may also affect mobile phones, MP3 players etc. - any device that can download files fro
Why cant datareader be returned from a Web Services Method? Ans) Because datareader is not serializable.
When using aspx view engine, to have a steady look and feel, across all pages of the application, we can build use of asp.net master pages. What is asp.net master pages equal, when
In which system field does the name of current gui status is there? The name of the present GUI STATUS is available in the system field SY-PFKEY.
Q. What is Unique port number? A port is an extra 16-bit number which uniquely identifies particular service on any given machine on Internet. Port numbers are 16 bit wide, con
Disadvantages 1. The X12 standard is so large and general 2. EDI communications negotiate a technical agreement to explain exactly what subset of EDI they will use
Why is the data bus in most microprocessors bidirectional while the address bus is unidirectional? Data Bus: These lines are used to send data to memory by output ports and
Define underflow and overflow. Underflow: If the result the arithmetic operation including n-bit numbers is too small to show by n-bits, underflow is said to occur. Overflow
Probelm : a) What is the purpose of "Jumps" in the 8051 Microcontroller? Describe three types of "Jumps". b) What is the purpose of a "call"? c) Differentiate between ROM
Define data type and abstract data type comment upon the significant of both
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