Answer:
The IBM 1401 is a variable-word length decimal computer that was announced by IBM on October 5, 1959.
The basic difference between RAM and ROM memory is RAM is read/write while ROM Is read-only.
Explanation:
- A ROM, non-volatile memory, does not use to store data, but RAM is volatile and requires power to store data.
- ROM is not given usually as a specification, but RAM is typically specified when buying a computer.
- We can write data only once in ROM. However, once it is written, we can read it any number of times. RAM is the main memory in a computer, and read from and write to it much faster than other storage types. RAM is used to store files in use on the computer.
Hence the basic difference between RAM and ROM memory is RAM is read/write while ROM Is read-only.
Answer:
The answer is (a).Presentation Layer
Explanation:
This layer is located at the 6th level of the OSI model, responsible for delivering and formatting the information to the upper layer for further processing. This service is needed because different types of computer uses different data representation. The presentation layer handles issues related to data presentation and transport, including encryption,translation and compression.
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