CCC Questions with Answers
Now you are in the final set of CCC Questions with Answers of 25 Questions.
Page 5
- A dumb terminal has :
Ans. A keyboard and screen.
- Impact printers :
Ans. Strike a ribbon against the paper to produce character images.
- Diskettes and hard disks are :
Ans. Direct access devices.
- The disadvantage of dynamic RAM over static RAM is :
Ans. need to refresh the capacitor charge every once in two milleseconds.
- Tthe following memories must be refreshed many time per second .....
Ans. Dynamic RAM.
- Which memory is nonvolatile and may be written only once ?
Ans. PROM.
- The memory which is programmed at the time itis manufactured :
Ans. ROM.
- The decimal equivalent of octal number 56 is :
Ans. 66
- The decimal equivalent of binary number 0.0111 is :
Ans. 0.4375.
- The binary code of (21.125)10is :
Ans. 10101.001.
- The binary code of (73)10is :
Ans. 1001001.
- The range of numbers which can be stored in a eight register (with left bit for sign) is :
Ans. –128 to + 128.
- The first digital computer built with IC chips was known a :
Ans. IBM System/360
- Which computer was the first to use a stored program ?
Ans. EDSAC.
- First integrated circuit chip was developed by :
Ans. J. S. Kilby.
- What is true of the ENIAC ?
Ans. It used vacuum tubes in place of electromagnetic relays.
- In the third generation of computers :
Ans. on-line, realtime systems first became popular.
- Which of the following are used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU ?
Ans. registers.
- Which is used for manufacturing chips ?
Ans. semiconductor.
- Which holds data and processing instructions temporarily until the CPU needs it ?
Ans. Main memory.
- The parity bit is added for.................purposes.
Ans. Error-detection.
- ...........can be programmed one time by either the manufacturer or the computer user. Once programmed, it cannot be modefied :
Ans. PROM.
- Different components on the motherboard of a PC processor unit are linked together by sets of parallel electrical conducting lines. What are these lines called ?
Ans. Buses.
- Why is a desktop computer called personal computer ?
Ans. Because only one person can use it at any point of time.
- The word size of a microprocessor refers to :
Ans. the amount of information that can be stored in a cycle.
- The primary memory of a personal computer consists of :
Ans. Both ROM and RAM.
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