it varied significantly from computer to computer within each generation with large overlaps from generation to generation but the running trend has been for greater storage capacity in each successive generation.
There are two types of storage devices used with computers: a primary storage device, such as RAM, and a secondary storage device, like a hard drive. Secondary storage can be removable, internal, or external storage.
the invention of transistor in 1947 provided a substitute for vacuum tubes in the second generation of computers. computers of this period all used magnetic-core storage systems for memory. -IBM 410 -Honeywell 800
Probably the same thing as was used in second generation computers.
While most embedded systems computers are not equipped with secondary storage, there are some that do have secondary storage. Such secondary storage when present is usually some kind of nonremovable Flash drive (although sometimes the Flash drive is removable, e.g. SDHC card). The reason most embedded systems computers are not equipped with secondary storage is that the application code is relatively small and no updates are expected to be needed, also the size of RAM is predetermined and the program must run in realtime so the use of virtual memory on disk is not desirable as it can produce unpredictable delays resulting in missing of realtime deadlines.
No. The secondary storage is typically slowerthan primary storage. But the secondary storage has higher capacity than primary storage.
Secondary storage is?æthe devices for permanent storage and it is not affected if the computer is turned on or not. Secondary storage is?æmostly known as auxiliary storage or external hardware.
yes. it's also called secondary storage
Primary storages are volatile. An Example of primary storage : RAM whereas, Secondary storages are permanent. An Example of secondary storage : ROM
secondary, actaully secondary, actaully
No
Um, your question doesn;t make much sense.. Secondary storage in normally considered your computers hard drive, a flash drive, floppy disc and the like. Things that don't lose data when turned off. Primary storage (like system memory)is accessed directly by your CPU, secondary storage is normally accessed through some soft or I/O device.