The computer size was very large in
Answer: A
Correct answer: First Generation
Vacuum tubes are large, run hot and need heavy power supplies and cooling, so first generation machines filled entire rooms - ENIAC weighed some thirty tons. Each later generation shrank the switching element and with it the machine.
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The most important or powerful computer in a typical network is _____
Answer: C
Correct answer: Network server
The server holds the shared data and services and answers requests from every other machine, so it needs the most capacity and is the most important machine on the network. Clients, stations and desktops are the machines making those requests.
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Which among the following disk is fixed disk?
Answer: A
Correct answer: Hard Disks
A fixed disk is one sealed inside the drive and not meant to be taken out, which is what a hard disk is. Flash drives, Blu-ray discs and DVDs are all removable media.
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Which among the following printing devices produces output composed of a series of dots?
Answer: D
Correct answer: Both a and c
A wire matrix printer forms each character by firing pins at the ribbon, and a Wang image printer builds the page from dots as well. A band printer carries fully formed characters on a moving band and so prints solid type rather than dots.
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Which 8-bit chip was used in many of today’s TRS-80 computers?
Answer: D
Correct answer: Z-80
The TRS-80 was built around the Zilog Z-80, an 8-bit processor; the name of the machine itself echoes it. The Z-8000 is a 16-bit chip, and the other two designations are not real Zilog parts.
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The first mechanical adding machine was invented by Blaise Pascal in ____________.
Answer: B
Correct answer: 1642
Pascal built his mechanical adding machine, the Pascaline, in 1642, at the age of nineteen, to help his father with tax accounts.
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Which of the following is the most powerful type of the computer?
Answer: D
Correct answer: Super computer
Supercomputers are the fastest machines built, measured in floating-point operations per second. A mainframe handles more simultaneous users but far less computation, a microcomputer is a personal machine, and a superconductor is a material, not a computer.
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Which among the following registers is loaded with the contents of the memory location pointed by the PC?
Answer: C
Correct answer: Instruction register
The program counter holds the address of the next instruction; that address goes to the memory address register, the word fetched arrives in the memory data register, and the instruction itself is then placed in the instruction register for decoding.
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_________ computers are used in Banking, Railways, and Airlines.
Answer: D
Correct answer: Mainframe Computer
Banks, railways and airlines need one machine to handle very large numbers of transactions and users reliably, which is exactly what mainframes are designed for. Supercomputers are optimised for calculation rather than for transaction volume.
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The first digital electronic computer was built in the year_______.
Answer: B
Correct answer: 1940
The first digital electronic computer, the Atanasoff-Berry Computer, was built at Iowa State between 1937 and 1942, which places it in 1940 among the options given. ENIAC, often called the first, came later, in 1946.
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