QUES: Many of the non-alphanumeric characters were positioned to correspond to their shifted position on typewriters; an important subtlety is that these were based on mechanical typewriters, not electric typewriters. Mechanical typewriters followed the standard set by the Remington No. 2 (1878), the first typewriter with a shift key, and the shifted values of 23456789- were "#$%_&'() –  early typewriters omitted 0 and 1, using O (capital letter o) and l (lowercase letter L) instead, but 1! and 0) pairs became standard once 0 and 1 became common. Thus, in ASCII !"#$% were placed in second column, rows 1–5, corresponding to the digits 1–5 in the adjacent column. The parentheses could not correspond to 9 and 0, however, because the place corresponding to 0 was taken by the space character. This was accommodated by removing _ (underscore) from 6 and shifting the remaining characters left, which corresponded to many European typewriters that placed the parentheses with 8 and 9. This discrepancy from typewriters led to bit-paired keyboards, notably the Teletype Model 33, which used the left-shifted layout corresponding to ASCII, not to traditional mechanical typewriters. Electric typewriters, notably the more recently introduced IBM Selectric (1961), used a somewhat different layout that has become standard on computers—​​following the IBM PC (1981), especially Model M (1984)—​​and thus shift values for symbols on modern keyboards do not correspond as closely to the ASCII table as earlier keyboards did. The /? pair also dates to the No. 2, and the ,< .> pairs were used on some keyboards (others, including the No. 2, did not shift , (comma) or . (full stop) so they could be used in uppercase without unshifting). However, ASCII split the ;: pair (dating to No. 2), and rearranged mathematical symbols (varied conventions, commonly -* =+) to :* ;+ -=.
What were used instead of 0 and 1? 

ANS: using O (capital letter o) and l (lowercase letter L) instead

QUES: The use of uranium in its natural oxide form dates back to at least the year 79 CE, when it was used to add a yellow color to ceramic glazes. Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, Italy, by R. T. Gunther of the University of Oxford in 1912. Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jáchymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry. In the early 19th century, the world's only known sources of uranium ore were these mines.
What was the earliest year in recorded history that uranium oxide was used?

ANS: 79 CE

QUES: The English held the city for 16 months and defeated several attempts to expel them. English soldiers advanced as far as Requena on the road to Madrid. After the victory of the Bourbons at the Battle of Almansa on 25 April 1707, the English army evacuated Valencia and Philip V ordered the repeal of the privileges of Valencia as punishment for the kingdom's support of Charles of Austria. By the Nueva Planta decrees (Decretos de Nueva Planta) the ancient Charters of Valencia were abolished and the city was governed by the Castilian Charter. The Bourbon forces burned important cities like Xativa, where pictures of the Spanish Bourbons in public places are hung upside down as a protest to this day. The capital of the Kingdom of Valencia was moved to Orihuela, an outrage to the citizens of Valencia. Philip ordered the Cortes to meet with the Viceroy of Valencia, Cardinal Luis de Belluga, who opposed the change of capital because of the proximity of Orihuela, a religious, cultural and now political centre, to Murcia (capital of another viceroyalty and his diocese). Because of his hatred of the city of Orihuela, which had bombarded and looted Valencia during the War of Succession, the cardinal resigned the viceroyalty in protest against the actions of Philip, who finally relented and returned the capital to Valencia.
Who resigned in protest against Philip?

ANS: Cardinal Luis de Belluga

QUES: PlayStation 3 uses the Cell microprocessor, designed by Sony, Toshiba and IBM, as its CPU, which is made up of one 3.2 GHz PowerPC-based "Power Processing Element" (PPE) and eight Synergistic Processing Elements (SPEs). The eighth SPE is disabled to improve chip yields. Only six of the seven SPEs are accessible to developers as the seventh SPE is reserved by the console's operating system. Graphics processing is handled by the NVIDIA RSX 'Reality Synthesizer', which can produce resolutions from 480i/576i SD up to 1080p HD. PlayStation 3 has 256 MB of XDR DRAM main memory and 256 MB of GDDR3 video memory for the RSX.
What doesn't PPE stand for?

ANS:
unanswerable