She had lived so long on the fringe of it that she had grown used to the idea. She had forgotten the shiver that went through her at Bouldershaw Fell when the message first came to them out of space. There had been so many alarms and excursions that the issue had become clouded, and in any case the message itself had been reduced to mundane terms of buildings and wiring and complicated man-made equipment. But standing there beside Fleming, who seemed not only tired but possessed and driven on by some kind of compulsion from outside, it was impossible not to sense an obscure, alien power lurking in the dim room. It merely touched her and passed away. It did not live in her brain as it seemed to live in his, but it made her shiver again.
“And this is the output unit,” said Fleming, who did not appear to notice what she had felt. “His normal thought processes are in binary arithmetic, but we make him print out in denary so that we can read it straight off.”
The wall of equipment in front of them was broken by a facia of display panels.
“What’s that?” asked Judy, pointing to an array of several hundred tiny neon bulbs set in rows between two perspex-sheathed metal plates that stood out at right-angles from the cabinet.
“That’s all the control unit. The lamps are simply a progress display device. They show the state of data going through the machine.”
“Has any gone through yet?”
“No, not yet.”
“You seem sure it will all work.”
“I’d never considered it not doing. It would be pointless for them to send a design for something that didn’t work.” The certainty in his voice was not simply his personal arrogance; there was the effect of something else speaking through him.
“If you understand it right.”
“Yes, I understand it. Most of it.” He waved a hand at the sheathed metal plates. “I don’t quite know what those are for. They’re electric terminals with about a thousand volts between them, which is why we put safety covers on. They were in the design and I expect we’ll learn how to use them. They’re probably some sort of sensing apparatus.”
Again, he seemed quite sure of it all, and quite unbaffled by its complexity. It was as if his brain had long been prepared and waiting for it: Judy thought how aching and empty he must have felt the year before when he was talking about a breakthrough and knocking down the railings. Not that he looked any happier now. She remembered that Bridger had said, “John’ll never be happy.”
Everything else seemed comparatively matter-of-fact as they walked round the room.
“The way it works,” said Fleming, “is, you teletype the data in—that’s the quickest way we have. The control unit decides what to do. The arithmetic units do the calculating—calling on the memory storage as they need, and putting new information into memory—and the answer comes out on the printer. The highway ducts are under the floor and the arithmetic units are along the side walls. It’s quite a conventional system really, but the conventionality ends there. It has a speed and capacity that we can hardly imagine.
There was complete silence around them. Shining rows of metal cabinets stood on each side of them, hiding their secrets, and the blank face of the control panel stared unseeingly at them in the dim light. Fleming stood casually looking round, seeming as much part of it as he was part of his car when driving.
“He’ll look prettier when he’s working,” he said, and took her round to the area behind the control racks.
This was a large semi-circular room, as dimly lighted as the other, with a huge metal-clad column rising through the centre.
“That’s the real guts of it: the memory storage.” He opened a panel in the lower wall of the column and shone an inspection lamp inside. “There’s a nice little job in molecular electronics for you. The memory is in the core and the core is held in a total vacuum to within a degree or two of absolute zero. That’s where the liquid helium comes in.”
Judy, peering in, could see a cube of what looked like metal about three foot square sealed in a glass tube and surrounded by cooling ducts. Fleming spoke mechanically, as if giving a lecture.
“Each core is built up of alternate wafers of conducting and non-conducting material half-a-thou thick, criss-crossed into a honeycomb. That gives you a complete yes-no gate circuit on a spot of metal you can hardly see.”
“Is that the equivalent of a brain cell?”
“If you like.”
“And how many are there?”
“The core’s a three-meter cube. That makes several millions of millions. And there are six cores.”
“It’s bigger than a human brain.”
“Oh yes. Much bigger. And faster. And more efficient.”
He closed the door-panel and said no more about it. She tried to imagine how it would really work, but the effort was as far beyond her as the understanding of matter; it was too vast and unfamiliar to visualise. She congratulated him and went away. He looked, for a moment, lonely and haunted but made no attempt to stop her. Then he started checking figures again.
Dennis Bridger was not captivated in the same way. He did his work stolidly and morosely, and made no discernible attempt to follow up his contacts with Intel. Major Quadring and his security people kept a careful eye on him; periodic checks were made on all staff leaving the main gates, to see that they were not taking out documents or other classified material, but Bridger did nothing at all to arouse their suspicion. His only recreation was visiting the off-shore island of Thorholm, from which he would return with gulls’ and gannets’ eggs and endearing photographs of puffins. Whatever inducement Kaufmann had given him to stay on did not seem to involve him in anything.
Geers regarded the whole team with suspicion. He was never obstructive, but a state of hostility existed between him and them. It was clear he would feel in some way satisfied if the experiment failed. However, as the super-computer neared completion, and the interest of his staff and his superiors in it increased, he took care to identify himself with any possible success. It was he who suggested that there should be a formal, though necessarily private, opening, and the Minister of Science—foiled of his unveiling of Bouldershaw Fell the previous year—allowed himself to be persuaded to cut a ribbon in Scotland. Fleming tried to put off the opening for as long as possible, but it was finally fixed for a day in October, by which time the new computer was due to be programmed and ready to receive its data. General Vandenberg and a couple of dozen Whitehall officials told their secretaries to make notes in their diaries.
Judy, at last, had something to do. There would be no press, but there were arrangements to be made with the various ministries, and plans for the visit to be worked out with Geers’s staff. She saw little of Fleming. When she had finished her work she would go for long, solitary walks across the moors in the blustery weather of early autumn.
About a week before the opening, she saw a white yacht standing out to sea. It was a big, ocean-going yacht, a long way off. From the camp, it was hidden behind the island of Thorholm, it could only be seen from further along the coast. Judy noticed it as she walked back by the cliff-top path in the afternoon.
The following afternoon it was still there, and Judy, walking along the path between the cliff edge and the heather, thought she could see the blink of an aldis lamp signalling from it. This in itself would not have made her curious, had she not suddenly heard the sound of a car engine from the moor above her. By instinct, she dodged down behind a gorse bush and waited. It was a powerful but smooth engine that purred expensively as it ticked over.
The next thing Judy noticed was that the signalling had stopped. A moment or two later the engine revved and she could hear a car drive heavily away. After it had gone some distance, she got up and walked to the top of the path. Where it came to the cliff-top, it met a rough cart-track which wound away inland to join the main road in a valley between the hills. A large, shining car was disappearing round the first bend, behind a coppice of firs. Judy stared after it: there was something familiar about it.