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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)).
Add 648 and 487 in BCD code. Ans. In BCD Code, addition of 648 and 487: 6 4 8 = 0 1 1 0 0 1 0 0 1 0 0 0 4 8 7 = 0 1 0 0 1 0 0 0 0 1 1 1 ---------------------
In assignment you are required extend the Patient class to implement an Inpatient class, representing a patient who is admitted to the hospital for a longer term and who may req
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Computer Memories Computer memories are either external or internal. Internal memories are either RAM (random access memory) or ROM (read only memory). External memories can t
What is the use of hypertext links in Internet access? Use of Hypertext links in Internet access: From the user’s view point, the Web comprised a vast, worldwide collecti
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How sensors uses in real time process control Sensors send data (through an analogue to digital converter - ADC) to a microprocessor or computer that decides whether or not to
A device which converts BCD to Seven Segment is called ? Ans. DECODER is a device that converts BCD to Seven Segment. This coverts binary words in alphanumeric characters.
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