Answer:
A lookaside buffer translation (TLB) is a memory cache that reduces the time it takes to access a user memory place. TLB includes the most lately used page table entries.
TLB is used to overcome the issue of sizes at the time of paging. Page Table Entry (PTE) is used for framing the memory ,but it uses two references one for finding the frame number
and the other for the address specified by frame number.
<u>Formula for finding effective memory access time-</u>
Effective Memory Access Time = (TLB access_time+Memory Access Time)*hit ratio + (TLB access_time+2*Memory Access Time)*(miss ratio)
Given in question,
Hit ratio = 0.90
Memory Access Time = 150ns
TLB access time= 5ns
Effective Memory Access Time = (TLB access_time+Memory Access Time)*hit ratio + (TLB access_time+2*Memory Access Time)*(miss ratio)
=(5+150) * 0.90 + (5+2*150)*(1-0.90)
=155 * 0.90 + (305*0.1)
=139.5 + 30.5
= 170ns
Answer:
In your table create statement, you can reference a primary key of another table. This is called a foreign key.
The syntax varies per database type.
Answer:
They should go for cloud based model
Explanation:
Cloud based model should be sort after because with such a model there can be a restoration of contents in just a little period of time. As for the usage, payments can be done. They would have highly packed response time, turn around time and also provide information security. At a go, there is flexibility in terms of storage and information retrieval. This may be more costly though but it would be helpful for data recovery without requiring physical data transmission
Answer:A keyboard layout is any specific physical, visual or functional arrangement of the keys, legends, or key-meaning associations of a computer keyboard, mobile phone, or other computer-controlled typographic keyboard.
An output device is any peripheral that receives data from a computer, usually for display, projection
A printer is an output device that prints paper documents. This includes text documents, images, or a combination of both
Laser Printers and LED printers
Explanation:
